Hello everybody, I'm still writing that test application, and I'm at the point where calls should be established between accounts. But.. whenever I call the make_call method, I get the following error: Object: {Account sip:2001 at 192.168.1.90}, operation=make_call(), error=No suitable sound capture device (PJMEDIA_ENOSNDREC) I think that in my case a sound capture device is not needed, because I simply want to play a wav file from the caller to the callee, and then the callee has to record it. Stop. Why should I need a sound capture device? Is there a way to get around this error? Thanks in advance, Andrea -- Dr. Andrea Spadaccini Multimedia Technologies Institute - MTI S.r.l. Web: www.x-voice.it - Tel: +39 (0) 95 7224945