Greetings to all. This past week, after receiving assistant from Jens, I successfully made calls with our local SIP provider using pjsua. Today, when I resumed testing and ran pjsua using the identical config I was using for testing, I get the following messages: 13:14:43.343 pjsua_app.c Call 0 state changed to EARLY (183 Session Progress) 13:14:43.343 strm00bcca84 VAD temporarily disabled 13:14:43.343 strm00bcca84 Encoder stream started 13:14:43.343 strm00bcca84 Decoder stream started 13:14:43.343 pjsua_media.c Media updates, stream #0: GSM (sendrecv) 13:14:43.343 conference.c Port 3 (sip:4169372271 at 174.137.63.202) transmitting to port 0 (Microsoft Sound Mapper - Input) 13:14:43.343 conference.c Port 0 (Microsoft Sound Mapper - Input) transmitting to port 3 (sip:4169372271 at 174.137.63.202) 13:14:43.343 pjsua_app.c Media for call 0 is active 13:14:43.359 Master/sound Underflow, buf_cnt=0, will generate 1 frame 13:14:43.359 Master/sound Underflow, buf_cnt=0, will generate 1 frame 13:14:43.359 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.390 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.406 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.421 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.453 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.468 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.484 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.500 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.531 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.546 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.562 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.593 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.609 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.625 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.640 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.671 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.687 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.703 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.718 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.750 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.765 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.781 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.812 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.828 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.843 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.859 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.890 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.906 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.921 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.953 strm00bcca84 Bad RTP pt 0 (expecting 3) 13:14:43.953 strm00bcca84 VAD re-enabled 13:14:43.968 strm00bcca84 Bad RTP pt 0 (expecting 3) The error message continues to loop until the following message: 13:14:45.796 sound_port.c EC suspended because of inactivity and then the error loop resume until I CTL-C and end pjsua. The call is being made by the SIP service provider because the dialed phone rings. However, I hear no audio activity whatsoever. Displaying the audio devices using pjsystest yields: 13:12:24.468 systest.c Running Audio Device List Audio Device List Found 11 devices 0: PA [Microsoft Sound Mapper - Input] (2/0) 1: PA [Logitech USB Headset] (2/0) 2: PA [Conexant AMC Audio] (2/0) 3: PA [Microsoft Sound Mapper - Output] (0/2) 4: PA [Logitech USB Headset] (0/2) 5: PA [Conexant AMC Audio] (0/2) 6: WMME [Wave mapper] (2/2) 7: WMME [Logitech USB Headset] (2/0) 8: WMME [Conexant AMC Audio] (2/0) 9: WMME [Logitech USB Headset] (0/2) 10: WMME [Conexant AMC Audio] (0/2) Can anyone suggest what this might be?