"From the media server" and "from the phone" implies a fork. You can have different SDP in responses from different forks.
-troy
Message: 4 Date: Wed, 16 Feb 2005 20:54:25 +0530 From: <[EMAIL PROTECTED]> Subject: RE: [Sip-implementors] SDP in 183 non reliable response To: <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> Cc: [EMAIL PROTECTED], [email protected] Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="us-ascii"
Uttam , You are not supposed to change the answer in the 200 OK .In case you have sent an offer you are not supposed to initiate a new offer until the previous offer/answer exchange is over , In the example you mention , you will need a new offer answer exchange to connect the phone and not change the SDP from the first offer answer .. Refer to the SIP offer answer model for details ... Cheers , Sayan
-----Original Message----- From: Uttam Kumar Sarkar [mailto:[EMAIL PROTECTED] Sent: Wednesday, February 16, 2005 7:36 PM To: 'Christer Holmberg (JO/LMF)'; 'Steven Egan'; Sayan Chowdhury (WT01 - TELECOM SOLUTIONS) Cc: [EMAIL PROTECTED]; [email protected] Subject: RE: [Sip-implementors] SDP in 183 non reliable response
Christer, You said "you can assume that the SDP will not change in any additional 18x (or 200) for the same dialog within the same transaction". How about the scenario when announcement is played by media server sent in 183 and then the final response is sent from the phone which would be different. Thanks, Uttam
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