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<tt>Hi Agalya,<br>
<br>
The append_branch() itself is not doing any SIP signaling. It is
only creating (internally, as data structure) a new branch for the
request (to a new destination).<br>
<br>
The signalling (to all created branches) is done by TM module when
you relay the request out. The forking is a transaction level
mechanism and it is handled by the TM module.<br>
<br>
Best regards,<br>
</tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
<div class="moz-cite-prefix">On 07.09.2016 16:56, Ramachandran,
Agalya (Contractor) wrote:<br>
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<p class="MsoNormal"><span style="color:blue">Hi team, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">When
append_branch() is called, it takes care of the forking
process.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">When we say it is
used to fork the call, append_branch() takes care of sending
the request out to that branch and as well maintaining the
dialog and transaction information for that call leg or it
is used only to send SIP INVITE out? <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Sounds like a
basic question. But I want to make sure how it works.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Am assuming it
takes care of dialog and transaction for that call leg and
it maps the response to that call leg as well. Correct me if
am wrong.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Regards,<br>
Agalya<o:p></o:p></span></p>
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