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CSN
OC Client
OC Server
INFO(MakeCall)
200 OK (MakeCallResponse)
3rd Party Call Established
INFO(MakeCall)
200 OK (MakeCallResponse)
INFO (Originated)
INFO (Originated)
200 OK
200 OK
200 OK
200 OK
200 OK
INFO (Delivered)
INFO (Delivered)
INFO (Established)
INFO (Established)
200 OK