Hi James, Just to be sure, that this is not a typo: check your SDP o= .... 137.117,136.143 c=IN IP4 137.117,136.143 This will definitely fail. ----- --- Alexey Vasilyev -- Sent from: http://opensips-open-sip-server.1449251.n2.nabble.com/OpenSIPS-Users-f1449235.html