[SR-Users] rtpproxy does not response, disable it

smititelu stefan.mititelu at 1and1.ro
Mon Dec 21 16:53:57 CET 2015

Hi Zodiac,

1. Can you see your configured rtp node on: "kamctl fifo nh_show_rtpp all" ?
2. Can you ngrep the commands being sent by kamailio to rtpengine?(on 
both kamailio and rtpengine machine)
3. Do you have some firewalling rules that may block that 7723 port?


On 21.12.2015 17:45, Zodiac wrote:
> Dear friends,
> I am working on a program on Kamailio and rtpengine proxy. I am 
> wondering whether can I set Kamailio and rtpengine daemon on different 
> physical machines. For example, I set Kamailio on a machine with IP 
> address:, and launch rtpengine daemon on another machine 
> with interface parameter as and ng port 7723. I set 
> parameter in Kamailio.cfg with modparam(“rtpengine”, “rtpengine_sock”, 
> “udp:”).
> Unfortunately I got debug message like this:
> ERROR: rtpengine [rtpengine.c:1710]: send_rtpp_command(): can't send 
> command to a RTP proxy
> ERROR: rtpengine [rtpengine.c:1746]: send_rtpp_command(): proxy 
> <udp:> does not respond, disable it
> ERROR: rtpengine [rtpengine.c:1616]: rtpp_test(): proxy did not 
> respond to ping
> And, I also tried to set Kamailio and rtpengine daemon in a same 
> machine,and use modparam(“rtpengine”, “rtpengine_sock”, 
> “udp:localhost:7723”). And Kamailio can work functionally under this 
> situation. rtpengine daemon can receive ping message from Kamailio and 
> rtpengine daemon can work as suspected. So for the later case, is it 
> supposed that Kamailio be in the same machine with same localhost 
> address? Otherwise, what’s the reason for my ERROR?
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