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<td id="header-avatar-image-container" valign="top" style="padding: 0px; border-collapse: collapse; vertical-align: top; width: 32px; padding-right: 9px"><a href="https://wiki.asterisk.org/wiki/display/~mmichelson?src=email" style="color: #3b73af; text-decoration: none"><img id="header-avatar-image" class="image_fix" src="cid:avatar_99ed0aa29d6f204db4785296f8170422" height="32" width="32" border="0" style="border-radius: 3px; vertical-align: top" /></a></td>
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<td class="notification-comment-pattern-container mobile-resize-text" style="padding: 0px; border-collapse: collapse; padding: 0px"><strong>Change comment:</strong> Filled in missing details, such as required modules, links to useful pages, and details on rich presence supplements.</td>
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<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB/5635/60fd2eb45debbf4ede2b669f4c9b96b4ce40a937.48/_/images/icons/macrobrowser/dropdown/warning.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>Warning</th>
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<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; padding: 0px; border-collapse: collapse"> <p style="margin: 10px 0 0 0; margin-top: 0">Under Construction - This page is a stub!</p> </td>
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</table> <h1 id="Configuringres_pjsipforPresenceSubscriptions-Capabilities" style="margin: 10px 0 0 0; font-size: 24px; font-weight: normal; line-height: 30px; margin: 40px 0 0 0">Capabilities</h1>Asterisk's PJSIP channel driver provides the same presence subscription capabilities as <code style="font-family: monospace">chan_sip</code> does. This means that <a href="http://tools.ietf.org/html/rfc3856" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">RFC 3856</a> presence and <a href="http://www.rfc-editor.org/rfc/rfc4235.txt" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">RFC 4235</a> dialog info are supported. <span class="diff-html-added" id="added-diff-0" style="font-size: 100%; background-color: #ddfade;">Presence subscriptions support </span><a href="http://tools.ietf.org/html/rfc3863" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">RFC 3863</span></a><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> PIDF+XML bodies as well as </span><a href="http://tools.ietf.org/html/draft-rosenberg-impp-pidf-00" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">XPIDF+XML</span></a><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">. </span>Beyond that, Asterisk also supports subscribing to <a href="http://tools.ietf.org/html/rfc4662" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none"><span class="diff-html-added" id="added-diff-1" style="font-size: 100%; background-color: #ddfade;">RFC 4662</span></a><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span>lists of presence resources<span class="diff-html-removed" style="font-size: 100%; background-color: #ffe7e7; text-decoration: line-through;"> </span><span class="diff-html-removed" id="removed-diff-0" style="font-size: 100%; background-color: #ffe7e7; text-decoration: line-through;">(</span><a href="http://tools.ietf.org/html/rfc4662" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none"><span class="diff-html-removed" style="font-size: 100%; background-color: #ffe7e7; text-decoration: line-through;">RFC 4662</span></a><span class="diff-html-removed" style="font-size: 100%; background-color: #ffe7e7; text-decoration: line-through;">)</span>.<br /> <h1 id="Configuringres_pjsipforPresenceSubscriptions-Configuration" style="margin: 10px 0 0 0; font-size: 24px; font-weight: normal; line-height: 30px; margin: 40px 0 0 0">Configuration</h1>If you are familiar with configuring subscriptions in <code style="font-family: monospace">chan_sip</code> then this should be familiar to you. Configuration of presence is performed using the "hint" priority for an extension in <code style="font-family: monospace">extensions.conf</code>.</td>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; padding: 0px; border-collapse: collapse">title</td>
<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; padding: 0px; border-collapse: collapse">On this Page</td>
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<td style="background-color: #fafafa; padding: 0 0 0 5px; font-size: 12px; text-align: left;; padding: 0px; border-collapse: collapse">2</td>
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</table> <p class="diff-context-placeholder" style="margin: 10px 0 0 0">...</p> <p class="diff-block-target diff-block-context" style="margin: 10px 0 0 0">The line shown here is similar to any normal line in a dialplan, except that instead of a priority number or label, the word "hint" is specified. The hint is used to associate the state of individual devices with the state of a dialplan extension. An English translation of the dialplan line would be "Use the state of device PJSIP/alice as the basis for the state of extension 1000". When PJSIP endpoints subscribe to presence, they are subscribing to the state of an extension in the dialplan. By providing the dialplan hint, you are creating the necessary association in order to know which device (or devices) are relevant. For the example given above, this means that if someone subscribes to the state of extension 1000, then they will be told the state of PJSIP/alice. <span class="diff-html-added" id="added-diff-2" style="font-size: 100%; background-color: #ddfade;">For more information about device state, see </span><a class="confluence-link unresolved" href="#" style="color: #3b73af; text-decoration: none"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">this page</span></a><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">.</span> </p> <p class="diff-block-target diff-block-context" style="margin: 10px 0 0 0"> <span class="diff-html-added" id="added-diff-3" style="font-size: 100%; background-color: #ddfade;">There are two endpoint options that affect presence subscriptions in </span><code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">pjsip.conf</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">. The </span><code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">allow_subscribe</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> option determines whether SUBSCRIBE requests from the endpoint are permitted to be received by Asterisk. By default, </span><code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">allow_subscribe</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> is enabled. The other setting that affects presence subscriptions is the </span><code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">context</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> option. This is used to determine the dialplan context in which the extension being subscribed to should be searched for. Given the dialplan snippet above, if the intent of an endpoint that subscribes to extension 1000 is to subscribe to the hint at 1000@default, then the context of the subscribing endpoint would need to be set to "default".</span> </p> <p class="diff-block-target diff-block-context" style="margin: 10px 0 0 0"> <span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">In order for presence subscriptions to work properly, some modules need to be loaded. Here is a list of the required modules:</span> </p>
<ul class="diff-block-target diff-block-context" style="margin: 10px 0 0 0">
<li> <code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">res_pjsip.so</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">: Core of PJSIP code in Asterisk.</span> </li>
<li> <code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">res_pjsip_pubsub.so</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">: The code that implements SUBSCRIBE/NOTIFY logic, on which individual event handlers are built.</span> </li>
<li> <code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">res_pjsip_exten_state.so</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">: Handles the "presence" and "dialog" events.</span> </li>
<li> <code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">res_pjsip_pidf_body_generator.so</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">: This module generates application/pidf+xml message bodies. Required for most subscriptions to the "presence" event.</span> </li>
<li> <code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">res_pjsip_xpidf_body_generator.so</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">: This module generates application/xpidf+xml message bodies. Required for some subscriptions to the "presence" event.</span> </li>
<li> <code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">res_pjsip_dialog_info_body_generator.so</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">: Required for subscriptions to the "dialog" event. This module generates application/dialog-info message bodies.</span> </li>
</ul> <p class="diff-block-target diff-block-context" style="margin: 10px 0 0 0"> <span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">If you are unsure of what event or what body type your device uses for presence subscriptions, consult the device manufacturer's manual for more information.</span> </p> <h1 id="Configuringres_pjsipforPresenceSubscriptions-PresenceCustomisations" class="diff-block-context" style="margin: 10px 0 0 0; font-size: 24px; font-weight: normal; line-height: 30px; margin: 40px 0 0 0">Presence Customisations</h1> <h2 id="Configuringres_pjsipforPresenceSubscriptions-DigiumPresence" class="diff-block-context" style="margin: 10px 0 0 0; font-size: 20px; font-weight: normal; line-height: 30px; margin: 40px 0 0 0; margin-top: 10px">Digium Presence</h2> <p class="diff-context-placeholder" style="margin: 10px 0 0 0">...</p> <p class="diff-block-target diff-block-context" style="margin: 10px 0 0 0">This means that updates to the presence state of CustomPresence:alice will also be conveyed to subscribers to extension 1000. <span class="diff-html-added" id="added-diff-4" style="font-size: 100%; background-color: #ddfade;">For more information on presence state in Asterisk, see </span><a class="confluence-link unresolved" href="#" style="color: #3b73af; text-decoration: none"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">this page</span></a><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">.</span> </p> <p class="diff-block-target diff-block-context" style="margin: 10px 0 0 0"> <span class="diff-html-added" id="added-diff-5" style="font-size: 100%; background-color: #ddfade;">The </span><code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">res_pjsip_pidf_digium_body_supplement.so</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> module must be loaded in order for additional presence details to be reported.</span> </p> <h2 id="Configuringres_pjsipforPresenceSubscriptions-RichPresence(limited)" class="diff-block-context" style="margin: 10px 0 0 0; font-size: 20px; font-weight: normal; line-height: 30px; margin: 40px 0 0 0">Rich Presence (limited)</h2> <p class="diff-block-target diff-block-context" style="margin: 10px 0 0 0">Some rich presence supplements that were in <code style="font-family: monospace">chan_sip</code> have been migrated to the PJSIP channel driver as well. <span class="diff-html-added" id="added-diff-6" style="font-size: 100%; background-color: #ddfade;">This is an extremely limited implementation of the "activities" element of a person</span>. <span class="diff-html-added" id="added-diff-7" style="font-size: 100%; background-color: #ddfade;">The </span><code style="font-family: monospace"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">res_pjsip_pidf_eyebeam_body_supplement</span><span class="diff-html-changed" id="changed-diff-0" style="background-color: #d6f0ff;">.</span></code> </p> <p class="diff-block-target diff-block-context" style="margin: 10px 0 0 0"> <span class="diff-html-removed" style="font-size: 100%; background-color: #ffe7e7; text-decoration: line-through;"> </span> </p> <p class="diff-block-target diff-block-context" style="margin: 10px 0 0 0"> <code style="font-family: monospace"><span class="diff-html-added" id="added-diff-8" style="font-size: 100%; background-color: #ddfade;">so</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> module is required to add this functionality.</span> </p> </td>
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