Hello,

I wonder what is the best strategy to adopt in folowing scenarios:

1. Endpoint A sends INVITE to B through stateful proxy P
2. B responds with 100 then with 180 which are succesuflly deliverd to A
3.1 B sends 200
3.2 P decides that it needs to drop the call   (Because of dread media 
gateway detection for example)
       What would be the best strategy for P?
       It seems that it can send 6xx to A but what it is supposed to 
send to B?  a BYE?


The second scenario is:
1. Endpoint A sends INVITE to B through stateful proxy P
2. B responds with 100 then with 180 which are succesuflly deliverd to A
3 B sends 200 which is delivered to A
4.  P decides that it needs to drop the call.
       What would be the best strategy for P in this case?





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