Hi All, I am trying to use pjsip with a GSM module to communicate with a remote server. When using ADSL, there is no packet loss but with GPRS link, I have something like 80% loss. I think this is due to the fact that RTP is encapsulated into UDP, and there is no reliability, nor integrity. I have a 8Khz sound chip, and use gsm codecs. I think adapting rtp flow could be helpful, but I don t know how to handle it. Any help? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20110628/9b255374/attachment.html>