[OpenSIPS-Users] How to overcome SIP ALG on Wi-Fi routers

[Bogdan-Andrei Iancu]

So that meas the INVITE never gets to the callee ?? maybe it is not 
properly routed .

Do you see (with ngrep or tcpdump) the INVITE being sent out by opensips 
towards callee ?

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 06.05.2016 12:56, Nabeel wrote:
>
> Hi,
>
> Thanks for the idea about packet compression. By 'call fails to 
> connect', I meant the call does not connect to the callee, ie. the 
> callee's phone does not ring after the INVITE (despite using TURN 
> server).
>
> This was a public WiFi network and that was all I could get at the 
> time. I am using OpenSIPS version 2.1.
>
> Nabeel
>
> On 6 May 2016 9:16 am, "Bogdan-Andrei Iancu" <bogdan at opensips.org 
> <mailto:bogdan at opensips.org>> wrote:
>
>     Hi,
>
>     Hard to analyze a call based on the INVITE packet only :). Still
>     the SIP signaling does not show any ALG interference (also not
>     sure if the capture was done before or after the ALG). Also, what
>     you mean by "call fails" ?no reply, negative reply , no audio ?
>
>     Regards,
>
>     Bogdan-Andrei Iancu
>     OpenSIPS Founder and Developer
>     http://www.opensips-solutions.com
>
>     On 05.05.2016 22:35, Nabeel wrote:
>>
>>     Please check the following SIP trace taken within a WiFi network.
>>     The call fails to connect despite the INVITE request and using a
>>     non-standard port. Could this be caused by SIP ALG, or some
>>     unopened RTP port on the router?
>>
>>     http://pastebin.com/raw/C4iymTbh
>>
>>
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