Hi,
I was wondering about a specific SIP scenario of the following type:
Two SIP endpoints send invite messages to each other at the same time
during
the same SIP session (same Call-Leg).

 (a)                         (b)
Invite                     Invite
-------->                <----------

While this scenario is unlikely to happen, it becomes more probable if
you consider that
One of the (re)invites could be a result of session-expiration refresh.

My question is what is the "right" way to handle this sort of situation?
Remember that the two invites could completely differ in coders & SDP.
Moreover, a 4xx response from one side could result with disconnection
of the session,
certainly an unwanted feature.

In general I've never seen SIP call flaws involving two interactions at
a time.
I'd appreciate any suggestions or enlightening comets on the issue.

Best regards,
Udi Apsel.



 


_______________________________________________
Sip-implementors mailing list
[EMAIL PROTECTED]
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors

Reply via email to