Hi Sipuser, Please find the responses as per scenario:
1. Its valid as terminating endpoint is mentioning its preferences although the call will be established on codec2. 2. Yes its valid. Scenario can be of some early media announcement. Initially call was established on codec 2 but some how call was say rejected and some announcement is now being played from network and Media Server in picture will use codec4. 3. Similar to 2. 4. Yes its possible to as far as stream used is same. It stream is new then new m =line needs to be added. 5. Didn't get this question. Thanks and Regards, Vivek Talwar -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of EXT K sipuser Sent: Monday, October 19, 2015 3:20 AM To: Sip-implementors Subject: [Sip-implementors] offer-questions. Hi,I have few questions.1) INVITE with codec1,codec2,codec3200ok with codec2, codec3. Is this ok to add codec3? 2)INVITE with codec1,codec2,codec3183 received with codec2.Update Received with codec4In early dialog state is this valid? 3)INVITE with codec1,codec2,codec3183 received with codec2.Update send with codec4In early dialog state is this valid? 4)INVITE with codec1,codec2,codec3200 OK received with codec2.--call is connectedUpdate Received with codec4 5) if SDP offer has RR and RS=0.can answer be non-zero RR and RS?RR in offer should be equal to RS in answer right? Can you please help in understanding these? _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
