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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/Upgrading+to+Asterisk+12" 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;">Upgrading to Asterisk 12</strong> </a> </h2> </td>
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<p class="diff-context-placeholder" style="font-size: 13px">...</p>
<ul class="diff-block-context">
<li style="font-size: 13px"> <span style="line-height: 1.4285715;"> </span><span style="line-height: 1.4285715;">This application has been removed. It was a holdover from when </span><span style="line-height: 1.4285715;">AgentCallbackLogin was removed.</span> </li>
</ul>
<h2 id="UpgradingtoAsterisk12-Answer" class="diff-block-target diff-block-context"> <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none"><span class="diff-html-added" id="added-diff-0" style="font-size: 100%; background-color: #ddfade;">Answer</span></a> </h2>
<ul class="diff-block-target diff-block-context">
<li style="font-size: 13px"> <span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">It is no longer possible to bypass updating the CDR when answering a channel. CDRs are based on the channel state and will be updated when the channel is Answered.</span> </li>
</ul>
<h2 id="UpgradingtoAsterisk12-ControlPlayback" class="diff-block-context"> <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none">ControlPlayback</a> </h2>
<ul class="diff-block-context">
<li style="font-size: 13px">The channel variable <code style="font-size: 13px">CPLAYBACKSTATUS</code> may now return the value <code style="font-size: 13px">REMOTESTOPPED</code> when playback is stopped by an external entity.</li>
</ul>
<h2 id="UpgradingtoAsterisk12-DISA" class="diff-block-target diff-block-context"> <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none"><span class="diff-html-added" id="added-diff-1" style="font-size: 100%; background-color: #ddfade;">DISA</span></a> </h2>
<ul class="diff-block-target diff-block-context">
<li style="font-size: 13px"> <span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">This application now has a dependency on the app_cdr module. It uses this module to hide the CDR created prior to execution of the DISA application.</span> </li>
</ul>
<h2 id="UpgradingtoAsterisk12-DumpChan%3A" class="diff-block-context"> <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none">DumpChan</a>:</h2>
<ul class="diff-block-context">
<li style="font-size: 13px">The output of DumpChan no longer includes the <em>DirectBridge</em> or <em>IndirectBridge</em> fields. Instead, if a channel is in a bridge, it includes a <em>BridgeID</em> field containing the unique ID of the bridge that the channel happens to be in.</li>
</ul>
<p class="diff-context-placeholder" style="font-size: 13px">...</p>
<ul class="diff-block-target">
<li style="font-size: 13px">The <em>voicemail.conf</em> configuration file now has an <code style="font-size: 13px">alias</code> configuration parameter for use with the <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none">Directory</a> application. The voicemail realtime database table schema has also been updated with an 'alias' column. Systems using voicemail with realtime should update their schemas accordingly.</li>
<li style="font-size: 13px"> <span class="diff-html-added" id="added-diff-2" style="font-size: 100%; background-color: #ddfade;">Mailboxes defined by </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">app_voicemail</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span><strong><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">MUST</span></strong><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> be referenced by the rest of the system as </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">mailbox@context</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">. The rest of the system cannot add </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">@default</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> to mailbox identifiers for </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">app_voicemail</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> that do not specify a context any longer. It is a mailbox identifier format that should only be interpreted by </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">app_voicemail</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">.</span> </li>
</ul>
<h2 id="UpgradingtoAsterisk12-ChannelDrivers%3A" class="diff-block-context">Channel Drivers:</h2>
<ul class="diff-block-context">
<li style="font-size: 13px">When a channel driver is configured to enable jiterbuffers, they are now applied unconditionally when a channel joins a bridge. If a jitterbuffer is already set for that channel when it enters, such as by the <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none">JITTERBUFFER</a> function, then the existing jitterbuffer will be used and the one set by the channel driver will not be applied.</li>
</ul>
<p class="diff-context-placeholder" style="font-size: 13px">...</p>
<ul class="diff-block-target diff-block-context">
<li style="font-size: 13px">Analog port dialing and deferred DTMF dialing for PRI now distinguishes between <code style="font-size: 13px">w</code> and <code style="font-size: 13px">W</code>. The <code style="font-size: 13px">w</code> pauses dialing for half a second. The <code style="font-size: 13px">W</code> pauses dialing for one second.</li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">The default for <code style="font-size: 13px">inband_on_proceeding</code> has changed to no.</span> </li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">The CLI command <code style="font-size: 13px">dahdi destroy channel</code> is now <code style="font-size: 13px">dahdi destroy channels</code>. </span><span style="line-height: 1.4285715;">A range of channels can be specified to be destroyed. Note that this command </span><span style="line-height: 1.4285715;">should only be used if you understand the risks it entails.</span> </li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;"><span class="diff-html-added" id="added-diff-3" style="font-size: 100%; background-color: #ddfade;">The script specified by the </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">chan_dahdi.conf</span></code><span class="diff-html-changed" id="changed-diff-0" style="background-color: #d6f0ff;"> </span><code style="font-size: 13px"><span class="diff-html-added" id="added-diff-4" style="font-size: 100%; background-color: #ddfade;">mwimonitornotify</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> option now gets the exact configured mailbox name. For </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">app_voicemail</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> mailboxes this is </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">mailbox@context</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">.</span></span> </li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">Added </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">mwi_vm_boxes</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> that also must be configured for ISDN MWI to be enabled.</span> <br /> </span> </li>
</ul>
<h2 id="UpgradingtoAsterisk12-chan_local%3A" class="diff-block-target diff-block-context"> <span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span><span style="line-height: 1.4285715;">chan_local:</span> </h2>
<ul class="diff-block-context">
<li style="font-size: 13px">The <code style="font-size: 13px">/b</code> option has been removed.</li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;"><code style="font-size: 13px">chan_local</code> moved into the system core and is no longer a loadable module.</span> </li>
</ul>
<p class="diff-context-placeholder" style="font-size: 13px">...</p>
<ul class="diff-block-target diff-block-context">
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">Significant changes have been made to the behavior of CDRs. The CDR engine </span><span style="line-height: 1.4285715;">was effectively rewritten and built on the Stasis message bus. For a full </span><span style="line-height: 1.4285715;">definition of CDR behavior in Asterisk 12, please read the <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none">Asterisk 12 CDR Specification</a>.</span><span style="line-height: 1.4285715;"> </span> </li>
<li style="font-size: 13px">CDRs will now be created between all participants in a bridge. For each pair of channels in a bridge, a CDR is created to represent the path of communication between those two endpoints. This lets an end user choose who to bill for what during bridge operations with multiple parties.</li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">The duration, billsec, start, answer, and end times now reflect the times </span><span style="line-height: 1.4285715;">associated with the current CDR for the channel, as opposed to a cumulative </span><span style="line-height: 1.4285715;">measurement of all CDRs for that channel.</span> </li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;"><span style="line-height: 1.4285715;"><span class="diff-html-changed" id="changed-diff-1" style="background-color: #d6f0ff;"> </span></span></span><span class="diff-html-added" id="added-diff-5" style="font-size: 100%; background-color: #ddfade;">CDR backends can no longer be unloaded while billing data is in flight. This helps to prevent loss of billing data during restarts and shutdowns.</span><span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span><span style="line-height: 1.4285715;"><span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span></span><span style="line-height: 1.4285715;"><span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span></span><span style="line-height: 1.4285715;"><span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span></span><span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span> </li>
</ul>
<h2 id="UpgradingtoAsterisk12-CEL%3A" class="diff-block-target diff-block-context"> <span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span><span style="line-height: 1.4285715;">CEL:</span> </h2>
<ul class="diff-block-context">
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">The <em>Uniqueid</em> field for a channel is now a stable identifier, and will not c</span><span style="line-height: 1.4285715;">hange due to transfers, parking, etc.</span> </li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">CEL has undergone significant rework in Asterisk 12, and is now built on the </span><span style="line-height: 1.4285715;">Stasis message bus. Please see the <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none">Asterisk 12 CEL Specification</a></span><span style="line-height: 1.4285715;"> for more detailed </span><span style="line-height: 1.4285715;">information. A summary of the affected events is below:</span>
<ul>
<li style="font-size: 13px"> <code style="font-size: 13px">BRIDGE_START</code>, <code style="font-size: 13px">BRIDGE_END</code>, <code style="font-size: 13px">BRIDGE_UPDATE</code>, <code style="font-size: 13px">3WAY_START</code>, <code style="font-size: 13px">3WAY_END</code>, <code style="font-size: 13px">CONF_ENTER</code>, <code style="font-size: 13px">CONF_EXIT</code>, <code style="font-size: 13px">CONF_START</code>, and <code style="font-size: 13px">CONF_END</code> events have all been removed. These events have been replaced by <code style="font-size: 13px">BRIDGE_ENTER</code>/ <code style="font-size: 13px">BRIDGE_EXIT</code>.</li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;"><code style="font-size: 13px">BLINDTRANSFER</code>/ <code style="font-size: 13px">ATTENDEDTRANSFER</code> events now report the peer as NULL and </span><span style="line-height: 1.4285715;">additional information in the extra string field.</span> </li>
</ul> </li>
</ul>
<p class="diff-context-placeholder" style="font-size: 13px">...</p>
<ul class="diff-block-context">
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">All channel and global variable names are evaluated in a case-sensitive manner. In previous versions of Asterisk, variables created and evaluated in the dialplan were evaluated case-insensitively, but built-in variables and variable evaluation done internally within Asterisk was done case-sensitively.</span> </li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">Asterisk has always had code to ignore dash '-' characters that are not part of a character set in the dialplan extensions. The code now consistently ignores these characters when matching dialplan extensions. </span> </li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;"><code style="font-size: 13px">BRIDGE_FEATURES</code> channel variable is now case sensitive for feature letter </span><span style="line-height: 1.4285715;">codes. Uppercase variants apply them to the calling party while lowercase </span><span style="line-height: 1.4285715;">variants apply them to the called party.</span> </li>
</ul>
<h2 id="UpgradingtoAsterisk12-" class="diff-block-target diff-block-context"> <span style="line-height: 1.4285715;"><span class="diff-html-changed" id="changed-diff-2" style="background-color: #d6f0ff;"> </span></span> </h2>
<h2 id="UpgradingtoAsterisk12-DialplanFunctions%3A" class="diff-block-target diff-block-context"> <span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">Dialplan Functions:</span> </h2>
<h2 id="UpgradingtoAsterisk12-.1" class="diff-block-target diff-block-context"> <span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span> </h2>
<h2 id="UpgradingtoAsterisk12-.2" class="diff-block-target diff-block-context"> <span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span> </h2>
<ul class="diff-block-target diff-block-context">
<li style="font-size: 13px"> <span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">Certain dialplan functions have been marked as 'dangerous', and may only be executed from the dialplan. Execution from extenal sources (AMI's GetVar and SetVar actions; etc.) may be inhibited by setting live_dangerously in the [options] section of asterisk.conf to no. SHELL(), channel locking, andirect file read/write functions are marked as dangerous. DB_DELETE() and REALTIME_DESTROY() are marked as dangerous for reads, but can now safely accept writes (which ignore the provided value).</span> </li>
</ul>
<h2 id="UpgradingtoAsterisk12-.3" class="diff-block-target diff-block-context"> <span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span> </h2>
<h2 id="UpgradingtoAsterisk12-Features%3A" class="diff-block-target diff-block-context"> <span style="line-height: 1.4285715;"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span></span><span style="line-height: 1.4285715;">Features:</span> </h2>
<ul class="diff-block-context">
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">The <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none"><em>features.conf</em></a> <code style="font-size: 13px">[applicationmap] <FeatureName> ActivatedBy</code> option is </span><span style="line-height: 1.4285715;">no longer honored. The feature is always activated by the channel that has <code style="font-size: 13px">DYNAMIC_FEATURES</code></span><span style="line-height: 1.4285715;"> defined on it when it enters the bridge. Use <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none">predial</a> to set </span><span style="line-height: 1.4285715;">different values of <code style="font-size: 13px">DYNAMIC_FEATURES</code> on the channels</span> </li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">Executing a dynamic feature on the bridge peer in a multi-party bridge will </span><span style="line-height: 1.4285715;">execute it on all peers of the activating channel.</span> </li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">There is no longer an explicit <code style="font-size: 13px">features reload</code> CLI command. Features can </span><span style="line-height: 1.4285715;">still be reloaded using <code style="font-size: 13px">module reload features</code>.</span> </li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">It is no longer necessary (or possible) to define the ATXFER_NULL_TECH in<em> </em></span><span style="line-height: 1.4285715;"><em>features.c</em> for <code style="font-size: 13px">atxferdropcall=no</code> to work properly. This option now just </span><span style="line-height: 1.4285715;">works.</span> </li>
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<p class="diff-context-placeholder" style="font-size: 13px">...</p>
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<li style="font-size: 13px">The <code style="font-size: 13px">amaflags</code> and <code style="font-size: 13px">accountcode</code> attributes for the CDR function are deprecated. Use the <a class="confluence-link unresolved" href="#" style="color: #326ca6; text-decoration: none">CHANNEL</a> function instead to access these attributes.</li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">The <code style="font-size: 13px">l</code> option has been removed. When reading a CDR attribute, the most </span><span style="line-height: 1.4285715;">recent record is always used. When writing a CDR attribute, all non-finalized </span><span style="line-height: 1.4285715;">CDRs are updated.</span> </li>
<li style="font-size: 13px">The <code style="font-size: 13px">r</code> option has been removed, for the same reason as the <code style="font-size: 13px">l</code> option.</li>
<li style="font-size: 13px"> <span style="line-height: 1.4285715;">The <code style="font-size: 13px">s</code> option has been removed, as <code style="font-size: 13px">LOCKED</code> semantics no longer exist in the </span><span style="line-height: 1.4285715;">CDR engine.</span> </li>
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<h2 id="UpgradingtoAsterisk12-VMCOUNT%3A" class="diff-block-target diff-block-context"> <span class="diff-html-added" id="added-diff-7" style="font-size: 100%; background-color: #ddfade;">VMCOUNT:</span> </h2>
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<li style="font-size: 13px"> <span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">Mailboxes defined by </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">app_voicemail</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span><strong><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">MUST</span></strong><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> be referenced by the rest of the system as </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">mailbox@context</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">. The rest of the system cannot add </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">@default</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> to mailbox identifiers for </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">app_voicemail</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> that do not specify a context any longer. It is a mailbox identifier format that should only be interpreted by </span><code style="font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">app_voicemail</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">.</span> </li>
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<h2 id="UpgradingtoAsterisk12-res_rtp_asterisk%3A" class="diff-block-context">res_rtp_asterisk:</h2>
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<li style="font-size: 13px">ICE/STUN/TURN support in <code style="font-size: 13px">res_rtp_asterisk</code> has been made optional. To enable them, an Asterisk-specific version of PJSIP needs to be installed. Tarballs are available from <a href="https://github.com/asterisk/pjproject/tags/" class="external-link" rel="nofollow" style="color: #326ca6; text-decoration: none">https://github.com/asterisk/pjproject/tags/</a>.</li>
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<p class="diff-context-placeholder" style="font-size: 13px">...</p>
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