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<font face="monospace">Hi Bela,<br>
<br>
If the directive is indicated in the INVITE, simply avoid doing
any forking in your cfg, nothing more.<br>
<br>
Regards,<br>
</font>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
OpenSIPS Summit 27-30 Sept 2022, Athens
<a class="moz-txt-link-freetext" href="https://www.opensips.org/events/Summit-2022Athens/">https://www.opensips.org/events/Summit-2022Athens/</a></pre>
<div class="moz-cite-prefix">On 10/10/22 10:06 PM, Bela H wrote:<br>
</div>
<blockquote type="cite"
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<p class="MsoNormal">Thanks Bogdan!</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">However, I am talking about serial forking,
call forwarding busy/no answer scenario.<o:p></o:p></p>
<p class="MsoNormal">Is there a way to avoid that in the cfg
without messing up with the to tags?<o:p></o:p></p>
<pre><span style="font-family:"Calibri",sans-serif">How do I achieve “</span>proxy to only a single address ("no-fork")”? </pre>
<p class="MsoNormal">According to fork-directive in
<a class="moz-txt-link-freetext" href="https://www.rfc-editor.org/rfc/rfc3841#section-9.1">https://www.rfc-editor.org/rfc/rfc3841#section-9.1</a>.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Cheers,</p>
<p class="MsoNormal">Bela</p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="border:none;padding:0cm"><b>From:
</b><a href="mailto:bogdan@opensips.org"
moz-do-not-send="true">Bogdan-Andrei Iancu</a><br>
<b>Sent: </b>Tuesday, 11 October 2022 01:49<br>
<b>To: </b><a href="mailto:users@lists.opensips.org"
moz-do-not-send="true">OpenSIPS users mailling list</a>;
<a href="mailto:hobe69@hotmail.com" moz-do-not-send="true">Bela
H</a><br>
<b>Subject: </b>Re: [OpenSIPS-Users] Request-Disposition:
no-fork</p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">Hi Bela,<br>
<br>
What you are trying to do (messing with the TO-tags) is a
bad idea, as you will be breaking the upstream parallel
forking.<br>
<br>
If the GW does not support forking, what you can do is to
avoid doing parallel forking in your cfg (like when routing
to users via lookup). You do not need any special support.<br>
<br>
Best regards,<br>
<br>
</span><o:p></o:p></p>
<pre>Bogdan-Andrei Iancu</pre>
<pre><o:p> </o:p></pre>
<pre>OpenSIPS Founder and Developer</pre>
<pre> <a href="https://www.opensips-solutions.com" moz-do-not-send="true">https://www.opensips-solutions.com</a></pre>
<pre>OpenSIPS Summit 27-30 Sept 2022, Athens</pre>
<pre> <a href="https://www.opensips.org/events/Summit-2022Athens/" moz-do-not-send="true">https://www.opensips.org/events/Summit-2022Athens/</a></pre>
<div>
<p class="MsoNormal">On 9/29/22 7:10 AM, Bela H wrote:<o:p></o:p></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I have call forwarding busy/no answer
scenario: A number is from a gateway, B and C numbers are
our own subs.<o:p></o:p></p>
<p class="MsoNormal">The gateway is sending us the INVITE
message with “Request-Disposition: no-fork” header field.<o:p></o:p></p>
<p class="MsoNormal">That means we must use one dialog for the
mentioned scenario.<o:p></o:p></p>
<p class="MsoNormal">Currently the To tag we are sending to
the GW in the first 180 ringing/181 Call is being forwarded
messages are different to the To tag in the second 180
ringing and 200 OK (SDP).<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Gateway OpenSips<o:p></o:p></p>
<p class="MsoNormal"> INVITE<o:p></o:p></p>
<p class="MsoNormal">------------------------------------------><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal" style="text-indent:36.0pt">100 GIVING IT
A TRY<o:p></o:p></p>
<p class="MsoNormal"><--
-----------------------------------------<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> 180 RINGING<o:p></o:p></p>
<p class="MsoNormal"><-
-------------------------------------------<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">181 CALL IS BEING FORWARDED<o:p></o:p></p>
<p class="MsoNormal"><-
-------------------------------------------<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> 180 RINGING<o:p></o:p></p>
<p class="MsoNormal"><-
-------------------------------------------<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> 200 OK (SDP)<o:p></o:p></p>
<p class="MsoNormal"><-
-------------------------------------------<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">What would be the easiest way from
OpenSIPS to send the same To tag (it should be the same from
the first 180 ringing through to the 200 OK) and using one
dialog for this scenario?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Cheers,<o:p></o:p></p>
<p class="MsoNormal">Bela<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<pre>_______________________________________________</pre>
<pre>Users mailing list</pre>
<pre><a href="mailto:Users@lists.opensips.org" moz-do-not-send="true">Users@lists.opensips.org</a></pre>
<pre><a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" moz-do-not-send="true">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a></pre>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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