I believe 422 can be send only by UAS not UAC.
If UAC receives 200 OK with Session-Expires as 10 seconds(which is less
than 90 default), it is against RFC.
So it is UAC implementation either it can continue to be in the call or
disconnect.
-Bhanu
-Original Message-
From: sip-implementor
Hi Karthik,
Lets say A supports certain codecs like G711ulaw and G711alaw.
B supports G729 and G726. since both does not have common codec session
establishment always fail.
Here comes B2BUA importance, this receives invite from A and sends to B
which B supports. Hence A and B will establish sessi
UAC will have its own timer, if it dint get any response after 100
within stipulated amount of time from UAS or proxy. It can send cancel
to teardown the session and it can retry later.
--Bhanuprasad KS.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
ge
