<h4>Pre-Submission Checklist</h4>



<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> Commit message has the format required by CONTRIBUTING guide</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> Commits are split per component (core, individual modules, libs, utils, ...)</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> Each component has a single commit (if not, squash them into one commit)</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> No commits to README files for modules (changes must be done to docbook files<br>
in <code>doc/</code> subfolder, the README file is autogenerated)</li>
</ul>
<h4>Type Of Change</h4>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> Small bug fix (non-breaking change which fixes an issue)</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> New feature (non-breaking change which adds new functionality)</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> Breaking change (fix or feature that would change existing functionality)</li>
</ul>
<h4>Checklist:</h4>

<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> PR should be backported to stable branches</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> Tested changes locally</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> Related to issue #XXXX (replace XXXX with an open issue number)</li>
</ul>
<h4>Description</h4>

<p>I was looking for a solution to set a dedicated From URI in OPTIONS<br>
requests to a specific dispatcher target.</p>
<p>ds_ping_from (<br>
<a href="https://www.kamailio.org/docs/modules/devel/modules/dispatcher.html#dispatcher.p.ds_ping_from" rel="nofollow">https://www.kamailio.org/docs/modules/devel/modules/dispatcher.html#dispatcher.p.ds_ping_from</a>)<br>
applies globally, while I needed the granularity of a single target.</p>
<p>I can just add an attribute to the others, e.g. instead of</p>
<pre><code>1 sip:127.0.0.1:7070 <http://127.0.0.1:7070> 0 1
</code></pre>
<p>something like:</p>
<pre><code>1 sip:127.0.0.1:7070 <http://127.0.0.1:7070> 0 1 ping_from=sip.custom.com
</code></pre>
<p>When the ping_from attribute is not specified, the general ds_ping_from<br>
applies and is used.</p>
<p>This would save me from a solution like intercepting the outgoing OPTIONS<br>
and manipulating the From header.</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/kamailio/kamailio/pull/1636'>https://github.com/kamailio/kamailio/pull/1636</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>dispatcher: add ping_from attribute</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1636/files#diff-0">src/modules/dispatcher/dispatch.c</a>
    (17)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1636/files#diff-1">src/modules/dispatcher/dispatch.h</a>
    (1)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1636/files#diff-2">src/modules/dispatcher/doc/dispatcher_admin.xml</a>
    (6)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/kamailio/kamailio/pull/1636.patch'>https://github.com/kamailio/kamailio/pull/1636.patch</a></li>
  <li><a href='https://github.com/kamailio/kamailio/pull/1636.diff'>https://github.com/kamailio/kamailio/pull/1636.diff</a></li>
</ul>

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