<div dir="auto"><div>This is valid a callflow. Offer answer for SDP is completed at INVITE 183.</div><div dir="auto"><br></div><div dir="auto">Regards,</div><div dir="auto">Venkat Ramana<br><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">On Thu, Jun 20, 2019, 23:08 <<a href="mailto:discussion-request@sipforum.org">discussion-request@sipforum.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send discussion mailing list submissions to<br>
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Today's Topics:<br>
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1. SIP Flow with a 200OK(without SDP) to the INVITE (Zu?iga)<br>
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Message: 1<br>
Date: Thu, 20 Jun 2019 15:26:01 +0000<br>
From: Zu?iga, Guillermo <<a href="mailto:Guillermo.Zuniga@cwpanama.com" target="_blank" rel="noreferrer">Guillermo.Zuniga@cwpanama.com</a>><br>
To: "<a href="mailto:discussion@sipforum.org" target="_blank" rel="noreferrer">discussion@sipforum.org</a>" <<a href="mailto:discussion@sipforum.org" target="_blank" rel="noreferrer">discussion@sipforum.org</a>><br>
Subject: [SIPForum-discussion] SIP Flow with a 200OK(without SDP) to<br>
the INVITE<br>
Message-ID:<br>
<<a href="mailto:25d4a03e440c4e7585cd662a04612aa8@CWP-JFR-EXC01.cwpanama.com" target="_blank" rel="noreferrer">25d4a03e440c4e7585cd662a04612aa8@CWP-JFR-EXC01.cwpanama.com</a>><br>
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<br>
Hi fellows,<br>
<br>
I would like to know the following:<br>
<br>
I am having the following flow and I would like to know if is a valid flow and if the remote SIPGW should be able to handle or complete this dialog when receive a 200OK without SDP to the INVITE.<br>
<br>
Flow:<br>
A ->INVITE with SDP<br>
B<-TRYING<br>
B<-183 WITH SDP<br>
A->PRACK<br>
B<-200OK TO THE PRACK<br>
B<-180 RINGING WITHOUT SDP<br>
B<-200OK WITHOUT SDP TO THE INVITE.<br>
A->ACK TO THE 200OK WITHOUT SDP TO THE INVITE.<br>
<br>
<br>
My question comes, cause I am having audio issue with the client is calling us and here I would like to know if could be related that I am sending the 200OK without SDP. Or he should be able to complete the dialog cause previous to the 200OK without SDP I sent a 183 with SDP?<br>
<br>
Please let me know any comments or where in the RFC I can look for that describe this behavior.<br>
<br>
Regards,<br>
Guillermo<br>
<br>
<br>
<br>
<br>
Guillermo Zuniga<br>
Especialista de Soporte T?cnico<br>
Gerencia de Soporte T?cnico<br>
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P: +507 263-6671 | +507 6670-0481<br>
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</blockquote></div></div></div>