[SR-Users] Not getting the final response after ringing

Daniel-Constantin Mierla miconda at gmail.com
Thu Dec 4 11:55:38 CET 2014


Look at the sip traffic flowing though server (e.g., with ngrep on port
5060) and see where the packets are routed.

Cheers,
Daniel

On 01/12/14 11:30, Rizwan Khan wrote:
> I am not sure if its the issue on my client end as CSIPSImple is not
> sendin the PRACK that is expected by the server or the rtp ports are
> not opened.
>
> I guess the ports are opened as I can hear two way voice. 
>
> But the following issues remain:
>
> 1. I cannot receive a call on the SIP number
> 2. I dont get an indication on the caller (thru CSIPSimple) that a
> call has started as in it doesnt start the call timer
> 3. The call disconnects with an error after some time ..INternal
> Server Error.
>
> Regards,
>
> Rizwan Khan
>
>
>
> On Mon, Dec 1, 2014 at 11:00 AM, Rizwan Khan <rizkhan at gmail.com
> <mailto:rizkhan at gmail.com>> wrote:
>
>     Thanks for the help guys.
>
>     I used a stateless proxy and was able to register. Now I am able
>     to make calls as well but there is an issue.
>
>     I receive multiple ringing but not receiving 200 ok after that. I
>     keep on receiving the ringing messages. Although the call gets
>     connected and I hear two way voice as well.
>
>     Also I am call through the sip number, but its not receiving any
>     calls.
>
>     Any ideas?
>
>     Rizwan Khan
>
>
>
>     On Thu, Nov 27, 2014 at 9:04 PM, Daniel Tryba <daniel at pocos.nl
>     <mailto:daniel at pocos.nl>> wrote:
>
>         On Thursday 27 November 2014 08:29:51 Rizwan Khan wrote:
>         > We want to use Kamailio as the pass-thru proxy in front of
>         the SBC just to
>         > receive the request on a random port, and then forward the
>         request to the
>         > SBC internally being on the same private network.
>         >
>         > What would be the best way to do it?
>
>         If it is the best is up to the experts, but a way to do is to
>         check wheter the
>         source is the SBC or not. If the message is from the SBC just
>         handle it
>         statefully (t_relay), if it isn't from the SBC set the
>         requested domain to the
>         ipaddr of the SBC (10.1.2.3) and process stateful. You could
>         use the received
>         port instead if external clients only communicate on the
>         special port
>         ($Rp!=6334)
>
>         kamailio.cfg:
>
>         #...
>         port=5060
>         port=6334
>         #...
>
>         request_route {
>         #...
>
>            if($si!="10.1.2.3")
>            {
>               $rd="10.1.2.3";
>            }
>
>            route(RELAY);
>         }
>
>
>
>         _______________________________________________
>         SIP Express Router (SER) and Kamailio (OpenSER) - sr-users
>         mailing list
>         sr-users at lists.sip-router.org
>         <mailto:sr-users at lists.sip-router.org>
>         http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
>
>
>
> _______________________________________________
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-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

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