Bill, a lot of thanks! I was experimenting and managed to solve the problem and just now I found that it is exactly as you said! Running the command with: --play-file=applause.wav --auto-play, sends the RTP packets! Although, running like this (which I need for my test): --play-file=applause.wav --auto-play --duration=30, seems to have the same problem as before! As can someone assume, it was solved by applying the auto-play last (so priority matters?): --duration=30 --play-file=applause.wav --auto-play From: pjsip [mailto:pjsip-bounces@xxxxxxxxxxxxxxx] On Behalf Of Bill Gardner Sent: Thursday, September 25, 2014 6:43 PM To: pjsip at lists.pjsip.org Subject: Re: Problem not transmitting .wav file Followup: the pjsip --help doc says --auto-play only works for incoming calls, but browsing the code it looks like it should work for all calls. Try including --auto-play option, if that doesn't work then you'll have to step through the code and see what changes are needed to make auto-play work for outgoing calls. Bill On 9/25/2014 6:32 AM, Giannis Zompolas wrote: Hi everyone! I test a scenario where I register with: ./pjsua --id sip:myNumber at myims.com --registrar sip:myims.com --proxy sip:anIP --realm myims.com --username user --password pass So as long as I am registered, I want to create a call to someone (it is an auto-answer number) and play a .wav file using the command: ./pjsua --id sip:myNumber at myims.com sip:NumberToCall at myims.com --proxy sip:anIP --play-file=applause.wav After I take the tcpdump, I see only the RTP flow of the auto-answer, and the 1 sec of silence created by my own device (after that VAD voice detector takes over). No RTPs with applause going out of my device! I see these logs if any helpful: pa_dev.c ..PortAudio sound library initialized, status=0 12:18:35.779 pa_dev.c ..PortAudio host api count=2 12:18:35.779 pa_dev.c ..Sound device count=4 ---> I have a dummy sound card, it should be enough! wav_player.c .File player 'applause.wav' created: samp.rate=44100, ch=1, bufsize=4KB, filesize=534KB 12:18:35.794 pjsua_aud.c .Player created, id=0, slot=1 .Set sound device: capture=-1, playback=-2 12:18:35.796 pjsua_app.c ..Turning sound device ON 12:18:35.797 pjsua_aud.c ..Opening sound device PCM at 16000/1/20ms 12:18:35.799 ec0xa183290 ...AEC created, clock_rate=16000, channel=1, samples per frame=320, tail length=200 ms, latency=0 ms 12:18:35.800 pjsua_media.c .Call 0: initializing media.. 12:18:35.800 pjsua_media.c ..RTP socket reachable at 192.168.1.79:4000 12:18:35.800 pjsua_media.c ..RTCP socket reachable at 192.168.1.79:4001 12:18:35.800 pjsua_media.c ..Media index 0 selected for audio call 0 _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip at lists.pjsip.org<mailto:pjsip at lists.pjsip.org> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20140926/73bf7438/attachment.html>