I occasionally get incomming SIP sessions that remain active on my Asterisk box after they have been cleared down by the SIP Gateway. This happens when there has been a fault on the network and the call has been interupted.
If this happens with a large number of simultaneous calls, the affect is I appear to be DOSing the SIP Gateway with one way traffic!
Is there a way to close specific active SIP sessions that Asterisk believes are active?
Is there a way to monitor SIP sessions to flag when the SIP session is no longer active on the remote Gateway.