Hi benny, i tried sending .wav file with the options below ./pjsua --play-file=FILE.wav --auto-play --auto-answer =200 --null-audio i can see the number of packets received at another system,. but how to get the .wav file itself at another system. or can i read packets received and write it to .wav file regards Chethana --------------------------------- Never miss a thing. Make Yahoo your homepage. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080311/c1d0792b/attachment.html