I agree with the other responses to this query.
See RFC6337 for more detail.
Thanks,
Paul
On 12/18/15 7:45 AM, Sourav Dhar Chaudhuri wrote:
Hi, Please refer the diagram below Callflow diagram
1) A ------------- INVITE [ Support: 100 rel] without SDP
------------------> B
2) A <-------------- 180 Ringing [Require: 100 rel] with SDP offer
------------ B
3) A ---------------- PRACK without SDP
------------------------------------------> B
4) A <---------------- 200OK for PRACK
------------------------------------------------- B
5) A ------------------- UPDATE with SDP answer
----------------------------------> B
6) A <----------------------- 200OK for UPDATE
-------------------------------------------- B
7) A <----------------------- 200OK for INVITE
----------------------------------------------- B
8) A ------------------------------ ACK
-----------------------------------------------------------> B
Whether the above Call flow Diagram is a valid one? I mean without sending SDP
in PRACK [in frame 3]as per RFC 3262, can I send it using UPDATE as per RFC
6337?
Also is the below call flow DIAGRAM is also valid.
1) A ------------- INVITE [ Support: 100 rel] without SDP
------------------> B
2) A <-------------- 180 Ringing [Require: 100 rel] with SDP offer
----------- B
3) A -------------------- PRACK without SDP
------------------------------------------> B
4) A <------------------- 200OK for PRACK
--------------------------------------------- B
5) A <----------------------- 200OK for INVITE
----------------------------------------------- B
6) A ------------------------------ ACK with SDP answer
-------------------------------> B
Here without sending SDP in PRACK [in frame 3]as per RFC 3262, can I send it by
ACK?
Thanks,
Sourav
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