On 10/15/14 10:22 AM, Sourav Dhar Chaudhuri wrote:
Hi,
Can CRBT works without using Reliable Provisional Response ?
A ================ INVITE (with SDP offer) ========================> B
A <=============== 180 ringing (with SDP answer ) ==================== B
----------------------> It is not a RPR
CRBT Played
A <=============== 200 OK for INVITE ( new SDP offer) =============== B
A ================= ACK (new SDP answer) =======================> B
Whether the above diagram is a correct call flow for CRBT without using
Reliable Provisional response?
This is not correct, and wouldn't be correct even if the 180 was reliable.
See RFC6337.
Thanks,
Paul
Regards
Sourav Dhar Chaudhuri
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