Hi All, Still no luck with the incoming call. As I've mentioned before, the ongoing call is working fine. Therefore i decided to compare the logs of both conversations, and i found out that the differences between the two are these lines: 19:07:36.338 Master/sound Underflow, buf_cnt=0, will generate 1 frame 19:07:36.362 Master/sound Underflow, buf_cnt=0, will generate 1 frame 19:07:36.371 sound_port.c EC activated 19:07:36.391 ec0x243e10 Underflow, buf_cnt=162, will generate 1 frame 19:07:36.406 ec0x243e10 Underflow, buf_cnt=162, will generate 1 frame 19:07:36.547 Master/sound Underflow, buf_cnt=0, will generate 1 frame 19:07:36.970 strm0x879974 VAD re-enabled 19:07:38.151 echo_suppress. Echo suppressor updated at t=006.550s, echo tail=40 msec, factor min/avg=0.026/0.001 19:07:50.969 echo_suppress. Echo suppressor learning done at t=019.380s, tail=40 ms, factor min/avg=0.022/0.142 In the outgoing call these lines appear after the state of the call was changed to confirmed. in the incoming call, these methods didn't get called. Maybe it can help you understand what is the problem. Regards, Maya -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100308/65e47941/attachment.html>