Re: [Sipping] how to response the offer

["Rockson Li (zhengyli)" <zhengyli at cisco.com>]

Sun,
 
I don't think answerer has the obligation to responds the offerer with the same answer as previous one.
In session refresh, this sort of scenario occurs frequently.
The answerer might take the chance to do call hold, MoH etc.

Similar talk at https://lists.cs.columbia.edu/pipermail/sip-implementors/2008-September/020300.html

-Rockson
________________________________

From: sipping-bounces at ietf.org [mailto:sipping-bounces at ietf.org] On Behalf Of 孙永光
Sent: Wednesday, August 19, 2009 3:29 PM
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 as it just answered before
 
now, How does A respond it ? 
 
does A  must respond  the B's new offer  with   the same SDP as the offer it sent previously?
 
could you give some advice ? 
 
Thanks
 
SunYongGuang
 
 
 
 

-- 
msn:yongguangsun at hotmail.com <mailto:msn%3Ayongguangsun at hotmail.com>