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Re: [Sipping] how to response the offer

In normal cases the answer would be the same, but it’s not mandatory.

 

RFC 3264, section 8 (Modifying the Session):

“If the offer is the same, the answer MAY be the same as the previous SDP from the answerer, or it MAY be different.”

 

From: sipping-bounces at ietf.org [mailto:sipping-bounces at ietf.org] On Behalf Of ???
Sent: Wednesday, August 19, 2009 10:29 AM
To: IETF Sipping List; sip-implementors at lists.cs.columbia.edu; discussion at sipforum.org
Subject: [Sipping] how to response the offer

 


Dear All

I have a question about How to respond the offer , the scenario is as following

A call B , and the offer and answer is ok , after a while , A receives a B 's REINVITE which includes the same SDP asitjust answered before

now, Howdoes A respond it ?

doesA must respond the B's new offer with the same SDP as the offer it sent previously?

could you give some advice ?

Thanks

SunYongGuang