Can anyone please tell me what is the capability needed in order to use rtp.lib. I am having a problem where once I call the following function in my application, I can't open my application in the phone, but if I remove the line, I can open the application successfully. It looks like the function is checking for a special capability.

RRtpSession* iRtpSession;

iRtpSession->OpenL(iSocketServer, localAddr, remoteAddr, 200, iConnection);

application capability:
CAPABILITY UserEnvironment MultimediaDD NetworkServices ReadUserData WriteUserData ReadDeviceData WriteDeviceData