Hello, I want to use TURN in pjsua. For that I download turnserver-0.4 from http://www.sf.net/projects/turnserver. I installed it one of my server eg. A. And I Install openser in another server eg.B. Now I want to run pjsua by this following command. pjsua-i386-Win32-vc8-Debug.exe --use-turn --turn-tcp --turn-srv [IP_OF_SERVER_A] --turn-user 123456 --turn-passwd 123456 --use-ice But unfortunately I for some error. If anyone have experience running PJSIP with TURN please help me... PJSIP Version: pjproject-1.8 OS: WindowsXP +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ tcprel00D18EB8 TURN client session created tcprel00D18EB8 State changed Null --> Resolving tcprel00D18EB8 State changed Resolving --> Resolved icetp00 Comp 1: TURN relay candidate waiting for allocation icetp00 Comp 2: host candidate 192.168.10.52:3971 added tcprel00D1D998 TURN client session created tcprel00D1D998 State changed Null --> Resolving tcprel00D1D998 State changed Resolving --> Resolved icetp00 Comp 2: TURN relay candidate waiting for allocation icetp00 ICE stream transport created tcprel00D18EB8 TCP connect() error: Connection refused (WSAECONNREFUSED) tcprel00D1D998 TCP connect() error: Connection refused (WSAECONNREFUSED) tcprel00D18EB8 State changed Resolved --> Deallocated tcprel00D1D998 State changed Resolved --> Deallocated icetp00 TURN allocation failed: Connection refused (WSAECONNREFUSED) icetp00 TURN allocation failed: Connection refused (WSAECONNREFUSED) tcprel00D18EB8 Request to shutdown in state Deallocated, cause:0 tcprel00D1D998 Request to shutdown in state Deallocated, cause:0 tcprel00D18EB8 State changed Deallocated --> Destroying tcprel00D1D998 State changed Deallocated --> Destroying pjsua_media.c Error initializing ICE media transport: Connection refused (WSAECONNREFUSED) [status=130061] tcprel00D1D998 TURN client session destroyed icetp00 ICE stream transport destroyed tcprel00D18EB8 TURN client session destroyed +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Thanks, Salahuddin Ahmed