[SIPForum-discussion] Need suggestion

[SYED IQBAL Ali]

Hi i have a question about branch parameter in Via header for below
scenarios.





Scenarios:

1)

OPTIONS sip:user1 at Server_IP SIP/2.0

Via:SIP/2.0/UDP Client_IP:9080;branch=z9hG4bKABC

Call-ID: Call_ID1 at Client_IP:9080

From: <sip:user1 at Client_IP:9080>;tag=1000000-0-803298131-9080

To: <sip:user1 at Server_IP:5060>

CSeq: 1 OPTIONS

Content-Length: 0

Contact: <sip:user1 at Client_IP:9080>

Max-Forwards: 70



====================

2)

OPTIONS sip:user2 at Server_IP SIP/2.0

Via:SIP/2.0/UDP Client_IP:9080;branch=z9hG4bKABC

Call-ID: Call_ID2 at Client_IP:9080

From: <sip:user2 at Client_IP:9080>;tag=1000000-0-803298131-9080

To: <sip:user2 at Server_IP:5060>

CSeq: 2 OPTIONS

Content-Length: 0

Contact: <sip:user1 at Client_IP:9080>

Max-Forwards: 70



1) My question is can we use same branch parameter in both OPTIONS requests
having different call ids or not?



-Call ids are different for both request.

-SIP URI is different for both call legs.

- To and from headers are different for both scenarios.
-Cseq are different in both cases.


-- 
SYED IQBAL ALI

s.iqbalali2005 at gmail.com
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