Hi we need remove some attributes from blow SDP message , v=0 o=- 3635492639 3635492639 IN IP4 211.231.173.119 s=pjmedia b=AS:25 t=0 0 a=X-nat:0 m=audio 4000 RTP/AVP 18 96 c=IN IP4 223.211.173.119 b=TIAS:8000 a=rtcp:4001 IN IP4 223.231.173.119 a=sendrecv a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:96 telephone-event/8000 a=fmtp:96 0-16 we have to remove bandwidth and rtcp attributes b=AS:25 a=X-nat:0 b=TIAS:8000 a=rtcp:4001 IN IP4 223.231.173.119 we tried with below configuration settings but failed media_cfg.ice_no_rtcp=false; media_cfg.enable_ice = 0; -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20150316/5cc1c635/attachment.html>