Subject: [Sip] a question about offer/answer model

From: "Hu Yijun,BISC R&D SA(BJ)" <[email-masked]>
Date: Thu, 27 Nov 2003 15:42:55 +0800

hi all,
 
I have a question about the SDP offer/answer model.
 
In the section 6 of rfc3264, it claimed that the answerer can reject an offer stream by setting the port number to zero. 
 
My question is: if an SDP offer, included in INVITE, is reject by the answerer, and the corresponding SDP answer is included in 200 OK, then how to deal with this answer in the offerer(UAC)? Should the UAC treat it as a successful SDP negotiation, or send a BYE immediately after sending the ACK?

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Best regards,
Hu Yijun
BISC, R&D SA
Tel.:+86-10-64346-660
E-mail: [email-masked]