A strange thing happens with RTP proxy since I compiled the v.1.2.0 release ...<br><br>Radomly, (approx. 1 time per 10 calls) RTP proxy don't grab the caller's original source IP in the SDP ???<br>
So I don't have any RTP, so no sound during the call.<br><br>typical call schema :<br>sip phone -> mitel ipbx -> kamailio -> audiocodes mediant 2000 -> pstn<br><br>All the SIP headers and the SDP are ok each time ... the RTP ports are ok too, understood at each point.<br>
rtp proxy is launched with these options with a public IP address (and compiled with a modified port range) :<br>/usr/sbin/rtpproxy
-s udp:77.246.81.133 35000 -u rtpproxy rtpproxy -p
/var/run/rtpproxy/rtpproxy.pid -l 77.246.81.133 -m 6000 -M 64000<br>
kamailio is ok too in the config : kamailio IPv4 UDP sip.720.fr:46830-><a href="http://rtpproxy.720.fr:35000/" target="_blank">rtpproxy.720.fr:35000</a><br><br>logs of RTP proxy (option -f to screen the debug) :<br>
<br># rtp ok :<br>
<br>received command "29638_4 L <a href="mailto:3962688592-61598521@10.33.146.4" target="_blank">3962688592-61598521@10.33.146.4</a> 77.246.81.136 35000 0_3962688592-61598523;1 1c1320846358;1"<br>lookup on ports 6008/6010, session timer restarted<br>
pre-filling callee's address with <a href="http://77.246.81.136:35000/" target="_blank">77.246.81.136:35000</a><br>sending reply "29638_4 6010 77.246.81.133<br>"<br>caller's address filled in: <a href="http://94.198.149.41:50186/" target="_blank">94.198.149.41:50186</a> (RTP)<br>
guessing RTCP port for caller to be 50187<br><br># rtp not ok :<br><br>received command "29571_2 L <a href="mailto:3288148592-61598465@10.33.146.4" target="_blank">3288148592-61598465@10.33.146.4</a> 77.246.81.136 35000 0_3288148592-61598467;1 1c934295778;1"<br>
lookup on ports 6000/6002, session timer restarted<br>pre-filling callee's address with <a href="http://77.246.81.136:35000/" target="_blank">77.246.81.136:35000</a><br>sending reply "29571_2 6002 77.246.81.133<br>
"<br><br>
and hop, no "caller's address filled in" ...<br>
<br>it's exactly the same type a SIP call (with the same ip phone, etc...).<br>I can precise that rtp proxy is running on the same machine that kamailio (v.1.4.4), but listen on a dedicated sub-if.<br><br>Does someone knows something about that ? thanks !<br>
<br><br>.Samuel Muller.<br><a href="mailto:sml@720.fr" target="_blank">sml@720.fr</a>