Is there a specific reason why the default codec ptime is 10ms but 2 frames are used per packet to get to the 20ms? For me that means that the encoding and decoding has to be done twice with the half sample count. Isn't it possible to set the PTIME to 20ms and frames_per_pkt = 1? Involved lines of code: pjmedia/src/pjmedia-codec/g722.c: line 41,43 and 295 Regards, Mike Derfler -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120905/c5d16d1e/attachment-0001.html>