we developed a VOIP application on symbian 3rd Edition FP2 using symbian c++ . Now we started testing the application in the device(E72). On the other end we are using X-lite on the system where Brekeke SIP server is installed.
We are able to send and receive SIP requests and when we start RTP, RTP is transfered from Device to X-lite and vice versa. On X-lite ,when we play RTP packets ,it's very clear. But after receiving RTP packet from X-lite,when we send RTP packets to the E72 speaker(tried with handset mode also) noise is heard along with the actual voice. We added two bytes of data to the received packets and send it to the speaker and we are using PCMA codec both sides.
Thanks in Advance..