[OpenSIPS-Users] Media Issue once the UA - connected

Bogdan-Andrei Iancu bogdan at opensips.org
Tue Jul 24 06:11:05 EDT 2018


Hi Sanjeev,

As I understand correctly, you end up connecting into your opensips 
devices from different networks - a devices from the private network 
(same as opensips) and another device from the public network.
But note that bidirectional direct communication between the 2 devices 
is not possible, as the public device cannot send traffic to a private 
IP/destination.
Depending on the opensips cfg, the SIP signaling works, as OpenSIPS will 
act as a bridge between the 2 networks. But this is not true for RTP, as 
RTP goes directly between the 2 devices. So, what you need is to use a 
media relay acting a bridge between the 2 networks.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   http://www.opensips-solutions.com
OpenSIPS Bootcamp 2018
   http://opensips.org/training/OpenSIPS_Bootcamp_2018/

On 07/24/2018 05:51 AM, Sanjeev Sharma via Users wrote:
> Hi ,
>
> i am  new to opensips world and i installed the openSIPS version 2.2 , 
> facing issue of media. Setup is my configuration is like
> 1) UAC request come through fortigate firewall on public address 
> (1234 at 49.121.121.121)  and then passed to my opensip machine (centos 7 
> , opensip version 2.2) having local address ( natted with public address)
> 2) registration of UAC is fine and if UAC are on same network lets say 
> one client on my laptop and another on mobile device (both on same ISP 
> WIFI) then voice is going through between the UAC but i switch the 
> network of the mobile to telco service provider then their is no media 
> pass on in between the UA or some time only one UA able to listen the 
> other side.
>
> i looked online and search lots of stuffs related to this and changed 
> in configuration but unable to solve or find what and where i am 
> getting. i tried TCP dump for both kinds of call i.e having voice or 
> no voice but unable to identify the difference between calls having 
> voice and no voice.
>
> Since i am new to this setup and configuration , just stuck due to 
> above problem .
>
> Please suggest where to look and what could be the possible reason. 
> Currently all traffic ( i.e all ports open) being allow from firewall 
> to machine
>
>
> Thanks
> Sanjeev
>
>
>
>
>
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