Klaus, I am using WinCE4.2 X86Emulator Board Support Package and IPPhone as the platform. The client uses a file to register with the server.In that file i have specified the ip address of the SIP server. I have not specified any port number. Below is a part of the debug o/p:
-VoIPMgr::OnRegistrationStateChangeEvent ASYNC_SOCKET::OnConnectReady - Error: 10061 dest: 192.168.1.141:5061 ASYNC_SOCKET::OnConnectError (0x8007274d) - enter SIP_MSG_PROCESSOR::OnConnectComplete connect failed 8007274d retry connecting via HTTP tunnel
From this debug o/p i take that the client is trying to register on port
5061 for udp. Please let me know your thoughts. Thanks, Annie