sess,request: deref request and ctrans immediately #1099
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if no provisional response was received for the request.
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... if no provisional response was received for the request.
This caused the following undesirable behavior with UDP: A user starts a call, doesn't get a response and so the user cancels it. Shortly after, the recipient of the INVITE goes online, receives a UDP retransmission of the INVITE and sends a response. The user could suddenly be in a call they thought they cancelled.
With this change, if a SIP session is terminated, the underlying
requestandctransare destroyed immediately if no response was received at all.For reliable transports this does not happen because a transport error would occur and there are no retransmissions.