<html><head><style type='text/css'>p { margin: 0; }</style><style type='text/css'>body { font-family: 'Times New Roman'; font-size: 12pt; color: #000000}</style></head><body>Hi All,<br><br>Greetings to everyone !!!<br><br>I have set up opensips and RTP Proxy in two different hosts since I have opensips in a Natted environment where RTP Proxy refused to budge.<br><br>Now I have installed RTP Proxy in a direct public IP. Normal calls between 2 Client is working great !!<br><br>During conference call, the calls get connected but there is no voice communication between any of them and soon the client who was connected last, gets disconnected.<br><br>I could not find much support regarding this issue. Any support is sincerely appreciated.<br><br>In my opensips.cfg, I have made the following config changes for RTP in different host,<br><br><span style="font-family: Courier,Courier New,mono; font-style: italic;">------Nat Params-------------</span><br style="font-family: Courier,Courier New,mono; font-style: italic;"><span style="font-family: Courier,Courier New,mono; font-style: italic;">modparam("usrloc","nat_bflag", 6)</span><br style="font-family: Courier,Courier New,mono; font-style: italic;"><span style="font-family: Courier,Courier New,mono; font-style: italic;">modparam("nathelper","rtpproxy_sock", "udp:rtp_proxy_publicIP:7890")</span><br style="font-family: Courier,Courier New,mono; font-style: italic;"><span style="font-family: Courier,Courier New,mono; font-style: italic;">modparam("nathelper","natping_interval", 30)</span><br style="font-family: Courier,Courier New,mono; font-style: italic;"><span style="font-family: Courier,Courier New,mono; font-style: italic;">modparam("nathelper","ping_nated_only", 0)</span><br style="font-family: Courier,Courier New,mono; font-style: italic;"><span style="font-family: Courier,Courier New,mono; font-style: italic;">modparam("nathelper","sipping_bflag", 7)</span><br style="font-family: Courier,Courier New,mono; font-style: italic;"><span style="font-family: Courier,Courier New,mono; font-style: italic;">modparam("nathelper","sipping_from", "sip:pinger@PROXY_IP")</span><br style="font-family: Courier,Courier New,mono; font-style: italic;"><span style="font-family: Courier,Courier New,mono; font-style: italic;">modparam("registrar","received_avp", "$avp(i:42)")</span><br style="font-family: Courier,Courier New,mono; font-style: italic;"><span style="font-family: Courier,Courier New,mono; font-style: italic;">modparam("nathelper","received_avp", "$avp(i:42)")<br><br></span><span style="font-family: Times New Roman,Times,serif;">I am </span><span style="font-family: Courier,Courier New,mono;"><span style="font-family: Times New Roman,Times,serif;">running my RTP Proxy using the following command,</span></span><span style="font-family: Courier,Courier New,mono; font-style: italic;"><br><br>./rtpproxy -l </span><span style="font-family: Courier,Courier New,mono; font-style: italic;">rtp_proxy_publicIP</span><span style="font-family: Courier,Courier New,mono; font-style: italic;"> -s udp:*:7890 -F<br><br></span><br>Thanks,<br>Arjun<br></body></html>