I suppose A must respond with the SDP description even when there is no change.
The reINVITE is treated like an independent transaction irrespective of what was
the reponse to the initial INVITE.
-Gaurav
Arunachalam Venkataman wrote:
> Suppose a call is established between 2 parties A and B.
> Now B issues a re-Invite to A with a new SDP.
> Is it a requirement for A to respond with a SDP in the 200 OK, even if it is
> unchanged?
>
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