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<a href=" https://wiki.asterisk.org/wiki/display/~mjordan " style="color:#326ca6;text-decoration:none;; color: #326ca6; text-decoration: none">Matt Jordan</a> edited the page:
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<td valign="top" style="font-size: 13px"> <h2 id="email-title-heading" style="font-size: 16px; line-height: 20px; min-height: 20px; margin: 0; padding: 0"> <a href="https://wiki.asterisk.org/wiki/display/AST/AMI+1.4+Specification" style="color: #326ca6; text-decoration: none"> <img class="icon" src="cid:page-icon" alt="" style="border: 0; padding: 0 5px 0 0; text-align: left; vertical-align: middle" /> <strong style="font-size:16px;line-height:20px;vertical-align:top;">AMI 1.4 Specification</strong> </a> </h2> </td>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/note.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Note</th>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px">This Specification is still in draft form.</p> </td>
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<h1 id="AMI1.4Specification-Introduction" class="diff-block-target diff-block-context"> <span class="diff-html-changed" id="changed-diff-0" style="background-color: #d6f0ff;">Introduction</span> </h1>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">This Asterisk Manager Interface (AMI) specification describes the relationship between Asterisk and an external entity wishing to communicate with Asterisk over the AMI protocol. It describes:</span> </p>
<ul class="diff-block-target diff-block-context">
<li style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">An overview of the AMI protocol</span> </li>
<li style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The operations AMI provides external entities wishing to control Asterisk</span> </li>
<li style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Basic formatting of AMI message structures</span> </li>
<li style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Guaranteed operations, configuration control, and other information provided by Asterisk in AMI 1.4</span> </li>
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<h2 id="AMI1.4Specification-Scope" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Scope</span> </h2>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">This specification describes AMI version 1.4, specifically for Asterisk 12. This specification provides details on the functional, operational and design requirements for AMI 1.4. Note that this does not include a comprehensive listing of the AMI configuration file parameters or messages that a system interfacing over AMI in Asterisk 12 will send/receive; however, it does provide a baseline of the supported features and messages provided in AMI 1.4. This specification should be used in conjunction with the documented AMI actions and events in Asterisk 12 to encompass the full range of functionality provided by AMI in Asterisk 12.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">In addition, this specification provides interface requirements levied on AMI by Stasis, a message bus internal to Asterisk. It conveys sufficient detail to understand how AMI attaches to the Stasis message bus and interacts with other entities on Stasis.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">This specification is intended for all parties requiring such information, including software developers, system designers and testers responsible for implementing the interface.</span> </p>
<h1 id="AMI1.4Specification-Terminology" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Terminology</span> </h1>
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<th class="confluenceTh" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;background-color: #F0F0F0; font-weight: bold;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Definition</span></th>
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<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Action</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">A command issued to Asterisk from an external entity via AMI</span></td>
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<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Client</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">An external entity communicating with Asterisk via AMI over some transport mechanism</span></td>
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<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Event</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">A message sent from Asterisk to an external entity via AMI</span></td>
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<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Field</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">A key/value pair that exists in either an action or event</span></td>
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<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Stasis</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">The internal framework that AMI is built on top of</span></td>
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<h1 id="AMI1.4Specification-ProtocolOverview" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Protocol Overview</span> </h1>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Asterisk provides a number of interfaces that serve different purposes. Say, for example, we wanted to manipulate a call between Alice and Bob via some external mechanism. Depending on what we wanted to do with the call, we may use one or more interfaces to manipulate the channels that make up the call between Alice and Bob.</span> </p>
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<th class="confluenceTh" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;background-color: #F0F0F0; font-weight: bold;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Interface</span></th>
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<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">... we want to use a local script to execute some logic on Alice's channel</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">AGI</span></td>
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<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">... we want to execute a script on a remote machine on Bob's channel</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">FastAGI</span></td>
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<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">... we want to put Alice into an IVR with fine grained media control, where the IVR is written outside of </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">extensions.conf</span></code></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">ExternalIVR</span></td>
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<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">... we want to control Alice and Bob's underlying channel objects at some asynchronous time</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">AMI (possibly with AsyncAGI)</span></td>
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<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">... we want to write our own Dialling application to control both Alice and Bob</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">ARI</span></td>
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<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">In general, AMI is used to manage Asterisk and its channels. It does not determine what actions are executed on a particular channel - the dialplan and/or an AGI interface does that - but it does allow a client to control call generation, aspects of call flow, and other internals of Asterisk.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">At its heart, AMI is an asynchronous message bus: it spills </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">events</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> that contain information about the Asterisk system over some transport. In response, clients may request that Asterisk takes some </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">action</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;">. These two concepts - actions and events - make up the core of what is AMI. As AMI is asynchronous, as events occur in Asterisk they are immediately sent to the clients. This means that actions issued by entities happen without any synchronization with the events being received, even if those events occur in response to an action. It is the responsibility of entities to associate event responses back to actions.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Clients wishing to use AMI act as clients and connect to Asterisk's AMI server over a supported transport mechanism. Authentication may or may not be enabled, depending on the configuration. Once connected, events can be automatically spilled to the connected clients, or limited in a variety of fashions. A connected client can send an action to the AMI server at any time. Depending on the allowed authorizations, the action may be allowed or disallowed.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">More information on the various ways a client can be configured can be seen in [AMI Configuration|#ami_configuration].</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-added" id="added-diff-0" style="font-size: 100%; background-color: #ddfade;"> </span> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-1" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/tip.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Tip</span></th>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-2" style="background-color: #d6f0ff;">Nomenclature</span></td>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-3" style="background-color: #d6f0ff;">Sometimes, the term </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">command</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> may be used instead of the term </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">action</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;">. With respect to AMI actions, command is synonymous with action, and the two can be treated the same. For the sake of consistency, we've attempted to use the term </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">action</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> where possible.</span> </p> </td>
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<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Historically, AMI has existed in Asterisk as its own core component </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">manager</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;">. AMI events were raised throughout Asterisk encoded in an AMI specific format, and AMI actions were processed and passed to the functions that implemented the logic. In Asterisk 12, AMI has been refactored to sit on top of Stasis, a generic, protocol independent message bus internal to Asterisk. From the perspective of clients wishing to communicate with Asterisk over AMI very little has changed; internally, the Stasis representation affords a much higher degree of flexibility with how messages move through Asterisk. It also provides a degree of uniformity for information that is propagated to interested parties.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-added" id="added-diff-1" style="font-size: 100%; background-color: #ddfade;"> </span> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-4" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/section.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Section</span></th>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=table" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>HTML Table</span></th>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=tr" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Table Row (tr)</span></th>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=td" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Table Cell (td)</span></th>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px"> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-5" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=gliffy" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Gliffy Diagram</span></th>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">name</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">AMI High Level Diagram</span></td>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">size</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">L</span></td>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-6" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=td" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Table Cell (td)</span></th>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-7" style="background-color: #d6f0ff;">Stasis acts as a generic publish/subscribe message bus inside of Asterisk. While AMI often directly interacts with constructs in Asterisk through actions, it receives its events through messages published over Stasis-Core. It translates the generic Stasis messages into an AMI event, and sends those to the appropriate AMI clients.</span> </p> </td>
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<h1 id="AMI1.4Specification-SemanticsandSyntax" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Semantics and Syntax</span> </h1>
<h2 id="AMI1.4Specification-MessageSendingandReceiving" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Message Sending and Receiving</span> </h2>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">By default, AMI is an asynchronous protocol that sends events immediately to clients when those events are available. Likewise, clients are free to send actions to AMI at any time, which may or may not trigger additional events. The exception to this is when the connection is over [HTTP/HTTPS|#transport_http]; in that scenario, events are only transmitted as part of the response to an HTTP POST.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Various options for configuration of clients can control which events are sent to a client. Events can be whitelisted/blacklisted explicitly via event filters, or implicitly by [class authorizations|#class_authorizations].</span> </p>
<h2 id="AMI1.4Specification-MessageLayout" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Message Layout</span> </h2>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">AMI is an ASCII protocol that provides bidirectional communication with clients. An AMI message – action or event – is composed of fields delineated by the '\r\n' characters. Within a message, each field is a key value pair delineated by a ':'. A single space MUST follow the ':' and precede the value. Fields with the same key may be repeated within an AMI message. An action or event is terminated by an additional '\r\n' character.</span> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-8" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/section.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Section</span></th>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/column.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Column</span></th>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-9" style="background-color: #d6f0ff;">width</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">50%</span></td>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-10" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/noformat.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>No Format</span></th>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-11" style="background-color: #d6f0ff;">Event: Newchannel
Privilege: call,all
Channel: PJSIP/misspiggy-00000001
Uniqueid: 1368479157.3
ChannelState: 3
ChannelStateDesc: Up
CallerIDNum: 657-5309
CallerIDName: Miss Piggy
ConnectedLineName:
ConnectedLineNum:
AccountCode: Pork
Priority: 1
Exten: 31337
Context: inbound</span>
</pre> </td>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-12" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/column.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Column</span></th>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-13" style="background-color: #d6f0ff;">width</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">50%</span></td>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-14" style="background-color: #d6f0ff;"> This is syntantically equivalent to the following ASCII string:</span> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-15" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/noformat.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>No Format</span></th>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-16" style="background-color: #d6f0ff;">Event: Newchannel\r\nPrivilege: call,all\r\nChannel: PJSIP/misspiggy-00000001\r\nUniqueid: 1368479157.3\r\nChannelState: 3\r\nChannelStateDesc: Up\r\nCallerIDNum: 657-5309\r\nCallerIDName: Miss Piggy\r\nConnectedLineName:\r\nConnectedLineNum:\r\nAccountCode: Pork\r\nPriority:\r\nExten: 31337\r\nContext: inbound\r\n\r\n</span>
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</table> <p style="font-size: 13px"> <span class="diff-html-removed" id="removed-diff-1" style="font-size: 100%; background-color: #ffe7e7; text-decoration: line-through;"> </span> </p> </td>
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<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-17" style="background-color: #d6f0ff;">Actions are specified in a similar manner. Note that depending on the message, some keys can be repeated.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-added" id="added-diff-2" style="font-size: 100%; background-color: #ddfade;"> </span> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-18" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/noformat.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>No Format</span></th>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-19" style="background-color: #d6f0ff;">Action: Originate
ActionId: SDY4-12837-123878782
Channel: PJSIP/kermit-00000002
Context: outbound
Exten: s
Priority: 1
CallerID: "Kermit the Frog" <123-4567>
Account: FrogLegs
Variable: MY_VAR=frogs
Variable: HIDE_FROM_CHEF=true</span>
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<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">In addition, no ordering is implied on message specific keys. Hence, the following two messages are semantically the same.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-added" id="added-diff-3" style="font-size: 100%; background-color: #ddfade;"> </span> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-20" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/section.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Section</span></th>
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<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px">
<table class="diff-macro diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/column.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Column</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-properties" style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;padding: 0; border: 1px solid #dddddd;; font-size: 13px">
<table>
<tbody>
<tr>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-21" style="background-color: #d6f0ff;">width</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">50%</span></td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px">
<table class="diff-macro diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-22" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/noformat.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>No Format</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-23" style="background-color: #d6f0ff;">Action: Originate
ActionId: SDY4-12837-123878782
Channel: PJSIP/kermit-00000002
Context: outbound
Exten: s
Priority: 1
CallerID: "Kermit the Frog" <123-4567>
Account: FrogLegs
Variable: MY_VAR=frogs
Variable: HIDE_FROM_CHEF=true</span>
</pre> </td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
</table>
<table class="diff-macro diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-24" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/column.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Column</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-properties" style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;padding: 0; border: 1px solid #dddddd;; font-size: 13px">
<table>
<tbody>
<tr>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-25" style="background-color: #d6f0ff;">width</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">50%</span></td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px">
<table class="diff-macro diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-26" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/noformat.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>No Format</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-27" style="background-color: #d6f0ff;">ActionId: SDY4-12837-123878782
Action: Originate
Variable: HIDE_FROM_CHEF=true
Variable: MY_VAR=frogs
Channel: PJSIP/kermit-00000002
Account: FrogLegs
Context: outbound
Exten: s
CallerID: "Kermit the Frog" <123-4567>
Priority: 1</span>
</pre> </td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
</table>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">This is also true for events, although by convention, the </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Event</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;"> key is the first key in the event. If an action or event contains duplicate keys, such as </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Variable</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;">, the order in which Asterisk processes said keys is the order in which they occur within the action or event.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Keys are case insensitive. Hence, the following keys are equivalent:</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-added" id="added-diff-4" style="font-size: 100%; background-color: #ddfade;"> </span> </p>
<table class="diff-macro diff-html-changed diff-block-target diff-block-context" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-28" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/section.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Section</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px">
<table class="diff-macro diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/column.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Column</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-properties" style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;padding: 0; border: 1px solid #dddddd;; font-size: 13px">
<table>
<tbody>
<tr>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-29" style="background-color: #d6f0ff;">width</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">30%</span></td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px">
<table class="diff-macro diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-30" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/noformat.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>No Format</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-31" style="background-color: #d6f0ff;">Action: Originate</span>
</pre> </td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
</table>
<table class="diff-macro diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-32" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/column.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Column</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-properties" style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;padding: 0; border: 1px solid #dddddd;; font-size: 13px">
<table>
<tbody>
<tr>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-33" style="background-color: #d6f0ff;">width</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">30%</span></td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px">
<table class="diff-macro diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-34" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/noformat.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>No Format</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-35" style="background-color: #d6f0ff;">ACTION: Originate</span>
</pre> </td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
</table>
<table class="diff-macro diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-36" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/column.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Column</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-properties" style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;padding: 0; border: 1px solid #dddddd;; font-size: 13px">
<table>
<tbody>
<tr>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-37" style="background-color: #d6f0ff;">width</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">30%</span></td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px">
<table class="diff-macro diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-38" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/noformat.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>No Format</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-39" style="background-color: #d6f0ff;">action: Originate</span>
</pre> </td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
</table>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The case sensitivity for values is left up to the context in which they are interpreted.</span> </p>
<h3 id="AMI1.4Specification-CommonFields" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Common Fields</span> </h3>
<h4 id="AMI1.4Specification-Actions" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Actions</span> </h4>
<h5 id="AMI1.4Specification-GeneralFields" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">General Fields</span> </h5>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">This section lists fields that apply generally to all actions.</span> </p>
<h6 id="AMI1.4Specification-Action" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Action</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Action</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> specifies the action to execute within Asterisk. Each value corresponds to a unique action to execute within Asterisk. The value of the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Action</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field determines the allowed fields within the rest of the message. By convention, the first field in any action is the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Action</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> </p>
<table class="diff-macro bodyless diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;margin: 5px 0; padding: 0; width: auto;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/anchor.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Anchor</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-properties" style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;padding: 0; border: 1px solid #dddddd;; font-size: 13px">
<table>
<tbody>
<tr>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">action_actionid</span></td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
</table>
<p style="font-size: 13px"></p>
<h6 id="AMI1.4Specification-ActionId" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">ActionId</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <strong><span class="diff-html-changed" style="background-color: #d6f0ff;">ActionId</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> is a universal unique identifier that can optionally be provided with an action. If provided in an action, events that are related to that action will contain the same </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">ActionId</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> value, allowing a client to associate actions with events that were caused by that action.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">It is recommended that clients always provide an </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">ActionId</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> for each action they submit.</span> </p>
<table class="diff-macro diff-html-changed diff-block-target diff-block-context" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-40" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/note.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Note</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-41" style="background-color: #d6f0ff;">It is up to the client to ensure that the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">ActionId</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> provided with an </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Action</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> is unique.</span> </p> </td>
</tr>
</tbody>
</table>
<h5 id="AMI1.4Specification-Channels" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Channels</span> </h5>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">This section lists fields that apply generally to all actions that interact upon an Asterisk channel. Note that an Action that interacts with a channel *must* supply the *Channel* field.</span> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-42" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/tip.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Tip</span></th>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-43" style="background-color: #d6f0ff;">title</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Upgrading</span></td>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-44" style="background-color: #d6f0ff;"> In the past, AMI clients would have to contend with channel rename events. As Asterisk will now no longer change the name of a channel during its lifetime, this is no longer necessary.</span> </p> </td>
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<p class="diff-block-target diff-block-context" style="font-size: 13px"> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/anchor.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Anchor</span></th>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">action_channel</span></td>
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<p style="font-size: 13px"></p>
<h6 id="AMI1.4Specification-Channel" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Channel</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The Asterisk channel name. A channel name is provided by AMI to clients during a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Newchannel</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event. A channel name can be viewed as the handle to a channel.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/anchor.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Anchor</span></th>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">action_uniqueid</span></td>
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<p style="font-size: 13px"></p>
<h6 id="AMI1.4Specification-Uniqueid" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Uniqueid</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">A universal unique identifier for the channel. In systems with multiple Asterisk instances, this field can be used to construct a globally unique identifier for a channel, as a channel name may occur multiple times across Asterisk instances.</span> </p>
<h4 id="AMI1.4Specification-Events" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Events</span> </h4>
<h5 id="AMI1.4Specification-GeneralFields.1" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">General Fields</span> </h5>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">This section lists fields that apply generally to all events.</span> </p>
<h6 id="AMI1.4Specification-Event" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Event</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The unique name of the event being raised. The value of the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Event</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field determines the rest of the contents of the message. By convention, the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Event</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field is the first field in an AMI message.</span> </p>
<h6 id="AMI1.4Specification-ActionId.1" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">ActionId</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">If present, the Action's corresponding </span><a href="#AMI1.4Specification-action_actionid" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" id="changed-diff-45" style="background-color: #d6f0ff;">ActionId</span></a><span class="diff-html-changed" style="background-color: #d6f0ff;"> </span><span class="diff-html-changed" id="changed-diff-46" style="background-color: #d6f0ff;">that caused this event to be created. If an Action contained an </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">ActionId</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;">, any event relating the success or failure of that action MUST contain an </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">ActionId</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field with the same value.</span> </p>
<h6 id="AMI1.4Specification-Privilege" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Privilege</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The class authorizations associated with this particular event. The class authorizations for a particular event are in a comma-delineated list. For more information, see [class authorizations|#class_authorizations].</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Event responses to an Action only occur if the Action was executed, which means the user had the appropriate class authorization. Therefore they will not have a Privilege field.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> </p>
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<thead>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/anchor.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Anchor</span></th>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">event_channels</span></td>
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</table> </td>
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<p style="font-size: 13px"></p>
<h5 id="AMI1.4Specification-Channels.1" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Channels</span> </h5>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">This section lists fields that apply generally to all events that occur due to interactions upon an Asterisk channel.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Events that relate multiple channels will prefix these fields with an event specific role specifier. For example, a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">DialBegin</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> or a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">DialEnd</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event will prefix the outbound channel's fields with </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Dest</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;">. So, the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Channel</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field is the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">DestChannel</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field; the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Uniqueid</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field is the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">DestUniqueid</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field, etc.</span> </p>
<h6 id="AMI1.4Specification-Channel.1" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Channel</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The current Asterisk channel name. This corresponds to the </span><a href="#AMI1.4Specification-action_channel" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" id="changed-diff-47" style="background-color: #d6f0ff;">Channel</span></a><span class="diff-html-changed" style="background-color: #d6f0ff;"> </span><span class="diff-html-changed" id="changed-diff-48" style="background-color: #d6f0ff;">field in actions.</span> </p>
<h6 id="AMI1.4Specification-Uniqueid.1" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Uniqueid</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">A universal unique identifier for the channel. This corresponds to the </span><a href="#AMI1.4Specification-action_uniqueid" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" id="changed-diff-49" style="background-color: #d6f0ff;">Uniqueid</span></a><span class="diff-html-changed" style="background-color: #d6f0ff;"> </span><span class="diff-html-changed" id="changed-diff-50" style="background-color: #d6f0ff;">field in actions.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> </p>
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<thead>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/anchor.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Anchor</span></th>
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<td class="diff-macro-properties" style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;padding: 0; border: 1px solid #dddddd;; font-size: 13px">
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">event_channelstate</span></td>
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<p style="font-size: 13px"></p>
<h6 id="AMI1.4Specification-ChannelState" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">ChannelState</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The current state of the channel, represented as an integer value. The valid values are:</span> </p>
<div class="table-wrap diff-block-target diff-block-context">
<table class="confluenceTable" style="border-collapse: collapse; border: 1px solid #ddd;">
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<th class="confluenceTh" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;background-color: #F0F0F0; font-weight: bold;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Value</span></th>
<th class="confluenceTh" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;background-color: #F0F0F0; font-weight: bold;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">State</span></th>
<th class="confluenceTh" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;background-color: #F0F0F0; font-weight: bold;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Description</span></th>
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<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">0</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Down</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Channel is down and available.</span></td>
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<tr>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">1</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Rsrvd</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Channel is down, but reserved.</span></td>
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<tr>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">2</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">OffHook</span></td>
<td class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Channel is off hook.</span></td>
</tr>
<tr>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">3</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Dialing</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">The channel is in the midst of a dialing operation.</span></td>
</tr>
<tr>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">4</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Ring</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">The channel is ringing.</span></td>
</tr>
<tr>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">5</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Ringing</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">The remote endpoint is ringing. Note that for many channel technologies, this is the same as Ring.</span></td>
</tr>
<tr>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">6</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Up</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">A communication path is established between the endpoint and Asterisk.</span></td>
</tr>
<tr>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">7</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Busy</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">A busy indication has occurred on the channel.</span></td>
</tr>
<tr>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">8</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Dialing Offhook</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Digits (or equivalent) have been dialed while offhook.</span></td>
</tr>
<tr>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">9</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Pre-ring</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">The channel technology has detected an incoming call and is waiting for a ringing indication.</span></td>
</tr>
<tr>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">10</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Unknown</span></td>
<td colspan="1" class="confluenceTd" style="border: 1px solid #DDD; padding: 5px 7px; min-width: 0.6em; text-align: left; vertical-align: top;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">The channel is an unknown state.</span></td>
</tr>
</tbody>
</table>
</div>
<table class="diff-macro diff-html-changed diff-block-target diff-block-context" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-51" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/tip.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Tip</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-52" style="background-color: #d6f0ff;">Depending on the underlying channel technology, not all states will be used. Channels typically begin in either the Down or Up states.</span> </p> </td>
</tr>
</tbody>
</table>
<h6 id="AMI1.4Specification-ChannelStateDesc" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">ChannelStateDesc</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The text description of the channel state. This will be one of the State descriptions in the table in </span><a href="#AMI1.4Specification-event_channelstate" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" id="changed-diff-53" style="background-color: #d6f0ff;">ChannelState</span></a><span class="diff-html-changed" id="changed-diff-54" style="background-color: #d6f0ff;">.</span> </p>
<h6 id="AMI1.4Specification-CallerIDNum" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">CallerIDNum</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The current caller ID number. If the caller ID number is not known, the string "<unknown>" is returned instead.</span> </p>
<h6 id="AMI1.4Specification-CallerIDName" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">CallerIDName</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The current caller ID name. If the caller ID name is not known, the string "<unknown>" is returned instead.</span> </p>
<h6 id="AMI1.4Specification-ConnectedLineNum" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">ConnectedLineNum</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The current connected line number. If the connected line number is not known, the string "<unknown>" is returned instead.</span> </p>
<h6 id="AMI1.4Specification-ConnectedLineName" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">ConnectedLineName</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The current connected line name. If the connected line name is not known, the string "<unknown>" is returned instead.</span> </p>
<h6 id="AMI1.4Specification-AccountCode" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">AccountCode</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The channel's accountcode.</span> </p>
<h6 id="AMI1.4Specification-Context" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Context</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The current context in the dialplan that the channel is executing in.</span> </p>
<h6 id="AMI1.4Specification-Exten" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Exten</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The current extension in the dialplan that the channel is executing in.</span> </p>
<h6 id="AMI1.4Specification-Priority" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Priority</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The current priority of the current context, extension in the dialplan that the channel is executing in.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> </p>
<table class="diff-macro bodyless diff-html-changed" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;margin: 5px 0; padding: 0; width: auto;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/anchor.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Anchor</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-properties" style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;padding: 0; border: 1px solid #dddddd;; font-size: 13px">
<table>
<tbody>
<tr>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">event_chanvariable</span></td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
</table>
<p style="font-size: 13px"></p>
<h6 id="AMI1.4Specification-ChanVariable" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">ChanVariable</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Channel variables specific to a channel can be conveyed in each AMI event related to that channel. When this occurs, each variable is referenced in a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">ChanVariable</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field. The value of a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">ChanVariable</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> field will always be of the form </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">key=value</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;">, where </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">key</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;"> is the name of the channel variable and </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">value</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;"> is its value.</span> </p>
<h5 id="AMI1.4Specification-Bridges" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Bridges</span> </h5>
<h6 id="AMI1.4Specification-BridgeUniqueid" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">BridgeUniqueid</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">A unique identifier for the bridge, which provides a handle to actions that manipulate bridges.</span> </p>
<h6 id="AMI1.4Specification-BridgeType" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">BridgeType</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The type of the bridge. Bridge types determine how a participant in a bridge can behave. For example, a 'base' bridge is a bridge that has few inherent properties or features associated with it, while a 'parking' bridge is one used for a parking application. Specific modules within Asterisk will determine the type of bridge that is created.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Note that this is not the same as how media within a bridge is mixed. How media is mixed between participants in a bridge is determined by the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">BridgeTechnology</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;">.</span> </p>
<h6 id="AMI1.4Specification-BridgeTechnology" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">BridgeTechnology</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">How the media can be mixed within a bridge. Specific modules in Asterisk provide different bridge technologies that can be used by Asterisk to alter how media passes between the participants. For a given bridge, the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">BridgeTechnology</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;">* can also change as the number and type of participants change. The most common bridge technologies are:</span> </p>
<ul class="diff-block-target diff-block-context">
<li style="font-size: 13px"> <p style="font-size: 13px"> <code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">holding_bridge</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;"> – normal participants joining the bridge may receive audio, but audio sent from a normal participant is dropped. Special participants, known as announcers, may broadcast their audio to all normal participants.</span> </p> </li>
<li style="font-size: 13px"> <p style="font-size: 13px"> <code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">native_dahdi</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;"> – a native bridge between DAHDI channels. Media is passed directly between all participants.</span> </p> </li>
<li style="font-size: 13px"> <p style="font-size: 13px"> <code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">native_rtp</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;"> – a native bridge between channels that use RTP for media. Media is passed directly between all participants.</span> </p> </li>
<li style="font-size: 13px"> <p style="font-size: 13px"> <code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">simple_bridge</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;"> – a two-party bridge between any two channels. Media is passed through the Asterisk core between the two participants.</span> </p> </li>
<li style="font-size: 13px"> <p style="font-size: 13px"> <code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">softmix</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;"> – a multi-party bridge between one or more participants. All media from all participants is mixed together and sent to all participants.</span> </p> </li>
</ul>
<h6 id="AMI1.4Specification-BridgeCreator" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">BridgeCreator</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Some bridges are created as the result of a particular application or action. If so, the bridge will specify who created it. If the bridge was not created as a result of any particular application or action, the field will have the value </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><unknown></span></code><span class="diff-html-changed" style="background-color: #d6f0ff;">.</span> </p>
<h6 id="AMI1.4Specification-BridgeName" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">BridgeName</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Some bridges are created with a names as a result of their application. If so, the bridge will specify the name given to it. If the bridge was created without a name, the field will have the value </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><unknown></span></code><span class="diff-html-changed" style="background-color: #d6f0ff;">.</span> </p>
<h6 id="AMI1.4Specification-BridgeNumChannels" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">BridgeNumChannels</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The number of channels currently in the bridge.</span> </p>
<h5 id="AMI1.4Specification-ActionResponses" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Action Responses</span> </h5>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">When an Action is submitted to AMI, the success or failure of the action is communicated in subsequent events.</span> </p>
<h6 id="AMI1.4Specification-Response" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Response</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Contains whether or not the action succeeded or failed. Valid values are "Success" or "Error". Events that are in response to an action MUST include this field.</span> </p>
<h6 id="AMI1.4Specification-EventList" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">EventList</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Some actions will cause a chain of events to be created. Events that are a response to an action that causes such a sequence will contain the EventList field with a value of "start". When all generated events have been sent, a final event will be sent containing the EventList field with the value "complete".</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">If, for some reason, an error occurs and the events cannot be sent, an event will be sent with an EventList field that contains the value "cancelled".</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Note that the events that mark the completion or cancellation of an event list are not technically action responses, and have their own specific event types.</span> </p>
<h6 id="AMI1.4Specification-Message" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Message</span> </h6>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">An optional text message that provides additional contextual information regarding the success or failure of the action.</span> </p>
<h2 id="AMI1.4Specification-Actions.1" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Actions</span> </h2>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The supported actions for Asterisk 12 are listed here:</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" style="background-color: #d6f0ff;">Asterisk 12 AMI Actions</span></a> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">While new AMI Actions may be added over the lifetime of Asterisk 12, existing AMI Actions will </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">not</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> be removed.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Optional fields may be added to an existing AMI action with altering the AMI version number, but required fields will </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">not</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> be added or removed.</span> </p>
<h2 id="AMI1.4Specification-Events.1" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Events</span> </h2>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The supported events for Asterisk 12 are listed here:</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" style="background-color: #d6f0ff;">Asterisk 12 AMI Events</span></a> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">While new AMI Events may be added over the lifetime of Asterisk 12, existing AMI Events will </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">not</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> be removed.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Fields may be added to an existing AMI event without altering the AMI version number, but existing fields will </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">not</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> be removed.</span> </p>
<h2 id="AMI1.4Specification-ChannelInteraction%2FLifetime" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Channel Interaction/Lifetime</span> </h2>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">While channels are independent of AMI, they have a large implication on the events sent out over AMI. Many of the events in AMI correspond to changes in channel state. While AMI is an asynchronous protocol, there is some ordering with respect to the events that are relayed for a particular channel. This section provides the basic event relationships that are guaranteed through AMI.</span> </p>
<h3 id="AMI1.4Specification-BasicChannelLifetime" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Basic Channel Lifetime</span> </h3>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">All channels begin with a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Newchannel</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event. A </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Newchannel</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> will always contain the following fields:</span> </p>
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<li style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The current </span><a href="#AMI1.4Specification-action_channel" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" id="changed-diff-55" style="background-color: #d6f0ff;">Channel</span></a><span class="diff-html-changed" style="background-color: #d6f0ff;"> </span><span class="diff-html-changed" id="changed-diff-56" style="background-color: #d6f0ff;">name that acts as a handle to the channel for that channel's lifetime for a single Asterisk system.</span> </li>
<li style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">The </span><a href="#AMI1.4Specification-action_uniqueid" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" id="changed-diff-57" style="background-color: #d6f0ff;">Uniqueid</span></a><span class="diff-html-changed" style="background-color: #d6f0ff;"> </span><span class="diff-html-changed" id="changed-diff-58" style="background-color: #d6f0ff;">for the channel, that allows systems to have a globally unique identifier for the channel.</span> </li>
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<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Changes in the state of the channel, i.e., the </span><a href="#AMI1.4Specification-event_channelstate" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" id="changed-diff-59" style="background-color: #d6f0ff;">ChannelState</span></a><span class="diff-html-changed" style="background-color: #d6f0ff;"> </span><span class="diff-html-changed" id="changed-diff-60" style="background-color: #d6f0ff;">field, are conveyed via </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Newstate</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> events.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Notification of a Channel being disposed of occurs via a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Hangup</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event. A </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Hangup</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> signals the termination of the channel associated with the Uniqueid. After the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Hangup</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event, no further events will be raised in relation to the channel with that Uniqueid, and the communication between the endpoint and Asterisk via that channel is terminated.</span> </p>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-62" style="background-color: #d6f0ff;">The examples in this specification do not show all of the fields in every event. For a full listing of all of the fields, see the documentation for the specific event in </span><a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" style="background-color: #d6f0ff;">Asterisk 12 AMI Events</span></a><span class="diff-html-changed" style="background-color: #d6f0ff;">.</span> </p> </td>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-66" style="background-color: #d6f0ff;">Event: Newchannel
Privilege: dialplan,all
Channel: PJSIP/kermit-00000001
Uniqueid: asterisk-1368479157.1
ChannelState: 0
ChannelStateDesc: Down
...</span>
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<li style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-68" style="background-color: #d6f0ff;">Kermit the Frog's SIP channel is created. The is the first event for </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">PJSIP/kermit-00000001</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;"> and indicates a path of communication being opened up between Asterisk and Kermit's SIP device.</span> </li>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-70" style="background-color: #d6f0ff;">Event: Newstate
Privilege: dialplan,all
Channel: PJSIP/kermit-00000001
Uniqueid: asterisk-1368479157.1
ChannelState: 6
ChannelStateDesc: Up
...</span>
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<li style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-72" style="background-color: #d6f0ff;">Kermit the Frog's PJSIP channel's state changes from Down to Up</span> </li>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-74" style="background-color: #d6f0ff;">Event: Hangup
Privilege: dialplan,all
Channel: PJSIP/kermit-00000001
Uniqueid: asterisk-1368479157.1
ChannelState: 6
ChannelStateDesc: Up
Cause: 16
Cause-txt: Normal Clearing
...</span>
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<li style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-76" style="background-color: #d6f0ff;">Kermit the Frog's PJSIP channel is hung up. At this point, no further events for </span><code style="font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">PJSIP/kermit-00000001</span></code><span class="diff-html-changed" style="background-color: #d6f0ff;"> will be sent.</span> </li>
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<h3 id="AMI1.4Specification-ChannelVariables" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Channel Variables</span> </h3>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">For each channel variable that is changed, a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">VarSet</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event is sent to the client. The </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">VarSet</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event contains the new value of the appropriate channel variable. Note that channel variables can also be conveyed in </span><a href="#AMI1.4Specification-event_chanvariable" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" id="changed-diff-77" style="background-color: #d6f0ff;">ChanVariable</span></a><span class="diff-html-changed" style="background-color: #d6f0ff;"> </span><span class="diff-html-changed" id="changed-diff-78" style="background-color: #d6f0ff;">fields.</span> </p>
<h3 id="AMI1.4Specification-DTMF" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">DTMF</span> </h3>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">DTMF is indicated via a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">DTMFBegin</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;">/</span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">DTMFEnd</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> events. A </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">DTMFEnd</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event MUST convey the duration of the DTMF tone in milliseconds.</span> </p>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-added" id="added-diff-5" style="font-size: 100%; background-color: #ddfade;"> </span> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-79" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/note.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Note</span></th>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-80" style="background-color: #d6f0ff;">title</span></td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Behavior Change</span></td>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-81" style="background-color: #d6f0ff;"> The combination of </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">DTMFBegin</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;">/</span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">DTMFEnd</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> events replaces the removed </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">DTMF</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event.</span> </p> </td>
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<h3 id="AMI1.4Specification-DialplanExecution" class="diff-block-target diff-block-context"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Dialplan Execution</span> </h3>
<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">As a channel executes operations in the dialplan, those operations are conveyed via a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">NewExten</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event. Each transition to a new combination of context, extension, and priority will trigger a </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">NewExten</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event.</span> </p>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-82" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/panel.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Panel</span></th>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;">Example</span></td>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-84" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=table" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>HTML Table</span></th>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=tr" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Table Row (tr)</span></th>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=td" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Table Cell (td)</span></th>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/noformat.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>No Format</span></th>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-changed" id="changed-diff-85" style="background-color: #d6f0ff;">Event: Newexten
Privilege: dialplan,all
Channel: PJSIP/kermit-00000001
Uniqueid: asterisk-1368479157.1
Context: default
Extension: h
Priority: 1
Application: NoOp
AppData: Ah Snap
...</span>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-changed" id="changed-diff-86" style="background-color: #d6f0ff;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/plugins/servlet/confluence/placeholder/macro-icon?name=td" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Table Cell (td)</span></th>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <p style="font-size: 13px"> <span class="diff-html-changed" id="changed-diff-87" style="background-color: #d6f0ff;">Kermit the Frog's PJSIP channel has been hung up, and he's been tossed rudely into the </span><em><span class="diff-html-changed" style="background-color: #d6f0ff;">h</span></em><span class="diff-html-changed" style="background-color: #d6f0ff;"> extension. This event informs the clients that Kermit's channel is in context </span><em><span class="diff-html-changed" style="background-color: #d6f0ff;">default</span></em><span class="diff-html-changed" style="background-color: #d6f0ff;">, extension </span><em><span class="diff-html-changed" style="background-color: #d6f0ff;">h</span></em><span class="diff-html-changed" style="background-color: #d6f0ff;">, priority </span><em><span class="diff-html-changed" style="background-color: #d6f0ff;">1</span></em><span class="diff-html-changed" style="background-color: #d6f0ff;">, and is about to execute the </span><em><span class="diff-html-changed" style="background-color: #d6f0ff;">NoOp</span></em><span class="diff-html-changed" style="background-color: #d6f0ff;"> application with application data </span><em><span class="diff-html-changed" style="background-color: #d6f0ff;">"Ah Snap"</span></em><span class="diff-html-changed" style="background-color: #d6f0ff;">.</span> </p> <p style="font-size: 13px"> <span class="diff-html-changed" style="background-color: #d6f0ff;">Note that even though Kermit has been hungup, we will not receive the </span><strong><span class="diff-html-changed" style="background-color: #d6f0ff;">Hangup</span></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> event until Kermit's PJSIP channel is done executing dialplan.</span> </p> </td>
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<p class="diff-block-target diff-block-context" style="font-size: 13px"> <span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span> </p>
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