[OpenSIPS-Users] No Voice Comm in Conference call

Bogdan-Andrei Iancu bogdan at opensips.org
Mon Jun 11 12:14:54 CEST 2012

Hi Arjun,

If you have no audio at all for the call to Conf Server, you need to 
check the signaling, particularity speaking the SDP part to be sure you 
inserted RTPProxy correctly between UAC and Conf Server.

So, make a SIP capture for the call to Conf and check if the IPs in SDP 
are correct.


Bogdan-Andrei Iancu
OpenSIPS Founder and Developer

On 06/07/2012 05:46 PM, Arjun Shankar K S wrote:
> Hi All,
> Greetings to everyone !!!
> 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.
> Now I have installed RTP Proxy in a direct public IP. Normal calls 
> between 2 Client is working great !!
> 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.
> I could not find much support regarding this issue. Any support is 
> sincerely appreciated.
> In my opensips.cfg, I have made the following config changes for RTP 
> in different host,
> ------Nat Params-------------
> modparam("usrloc","nat_bflag", 6)
> modparam("nathelper","rtpproxy_sock", "udp:rtp_proxy_publicIP:7890")
> modparam("nathelper","natping_interval", 30)
> modparam("nathelper","ping_nated_only", 0)
> modparam("nathelper","sipping_bflag", 7)
> modparam("nathelper","sipping_from", "sip:pinger at PROXY_IP")
> modparam("registrar","received_avp", "$avp(i:42)")
> modparam("nathelper","received_avp", "$avp(i:42)")
> I am running my RTP Proxy using the following command,
> ./rtpproxy -l rtp_proxy_publicIP-s udp:*:7890 -F
> Thanks,
> Arjun
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20120611/ead99b8a/attachment-0001.htm>

More information about the Users mailing list