This sounds like a NAT problem, where the callee does not receive the
ACK request (INVITE-200OK-ACK).

regards
klaus

Am 21.07.2011 10:32, schrieb Coca:

> Hi List,
>
> I have a Kamailio3.1 server and RTPProxy running in WAN.
>
> The calls between UA will automatically terminated in Callee UA side 36s
> after connected, while no one sends a BYE.
>
> While Kamailio and UA are in LAN at all , everything is just working well.
>
> Is it my rtpproxy doesn't working correctly or something else is wrong?
> What can I do to fix it.
>
> Any hint??
>
> BTW,
> Kamailio is installed following official guide
> http://www.kamailio.org/dokuwiki/doku.php/install:kamailio-3.1.x-from-git
> The kamailio.cfg wasn't changed at all except for below:
> -----------------------------------------------------------------------------------------
> 1) adding the following lines:
> #!define WITH_MYSQL
> #!define WITH_AUTH
> #!define WITH_USRLOCDB
> #!define WITH_NAT
>
> 2)uncommenting the line below in route[REGISTRAR],
> setbflag(FLB_NATSIPPING);
>
> 3)change rtpproxy port corresponding
> modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:22222

> <http://127.0.0.1:22222>")

>
> -----------------------------------------------------------------------------------------
>
> and my rtpproxy1.2.1 was installed by apt-get install rtpproxy,
> with
> 1) /etc/default/rtpproxy changed into:
>
> # Defaults for rtpproxy
>
>
> # The control socket.
>
> #CONTROL_SOCK="unix:/var/run/rtpproxy/rtpproxy.sock"
>
> # To listen on an UDP socket, uncomment this line:
>

> CONTROL_SOCK=udp:127.0.0.1:22222 <http://127.0.0.1:22222>

>
> LISTEN_ADDR=xx.xx.xx.xx
>
>
> # Additional options that are passed to the daemon.
>
> EXTRA_OPTS="-l ${LISTEN_ADDR}"
>
> 2) and started by
>  rtpproxy -l xx.xx.xx.xx -s udp:localhost:22222 -u kamailio
>
>
>
> Your help will be great appreciated.
>
> Coca
>
>
>

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