[SIPForum-discussion] Can we send 183 twice with the change in Media

Bob Penfield BPenfield at acmepacket.com
Mon Dec 8 18:24:29 UTC 2008


The same logical UAS (i.e. same dialog) is not allowed to send different SDP in different responses to the INVITE.

If B and B' are separate dialogs (i.e. the to-tag in the two 183 responses are different), then they are two logical UASs and each is sending only one SDP.

cheers,
(-:bob

________________________________
From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Abhishek Kumar
Sent: Monday, December 08, 2008 6:16 AM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] Can we send 183 twice with the change in Media

Hi,

Can anyone help me on this.

Is it possible to send 183 twice with Media changed.

INVITE ---------------->
          <--------------- 100 TRYING
          <--------------- 183 Session Progress (Media as B)
          <--------------- 183 Session Progress (Media as B' )


          <--------------- 200 OK (Media as B' )

Will call be established in this case.

Thanks,
~Abhishek

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