Thanks for the detailed explanation. I believe I can continue to use GSM codecs as G729 (which isn't free in the first place) will not help me much with bandwidth. I hope somebody can enlighten me on my last question. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090623/1227a2eb/attachment.html>