I use the SIP Termination service from ezcall inc (grnvoip.com) and I'm having some trouble playing .wav files into the media stream using FreeSWITCH. The audio either comes out really slow, or really fast. So a 60 second .wav file is either finished playing in 90 seconds (really slow) or finishes playing in 20 seconds (really fast). I believe this is caused by different ptime values that are being setup in the session. In the FreeSWITCH console I often received this error [WARNING] mod_sofia.c:808 We were told to use ptime 30 but what they meant to say was 20 I tried forcing the codec and ptime using absolute_codec_string='PCMU@30i' and it seemed to fix the really slow playback problem. but now I'm getting a [WARNING] mod_sofia.c:808 We were told to use ptime 30 but what they meant to say was 10 error and in some sessions the audio is playing back too fast (at 3x the speed). Is there a way I can force ptime to be 30 and avoid FreeSWITCH "fixing" the ptime values? Are there any other work arounds? --matt