[Users] SER to PSTN problem, network blows away... :(

[Bogdan-Andrei Iancu]

Hi Ozan,

both the script and the net flow look ok - I would say you have a 
network problem - maybe some traffic congestion?? you said this happens 
only when trying to call the GW which is outside your network and the 
RTP traffic goes via your ADSL modem....

regards,
bogdan

Ozan Blotter wrote:

> Dear List,
>  
>  
> SER at Public IP : 212.154.104.198 and operating good, there's no 
> firewall or etc.
> PSTN Gateway located at Public IP : 212.154.59.48 and operating good, 
> there's no firewall or etc.
> There are two ATA's for testing purpose, both are behind NAT (Zoom X4 
> ADSL Modem/Gateway) but please note that port forwarding is done from 
> router so when a user dials another one, the voice traffce flows 
> directly between users, not on SER and again no problem for parties 
> while calling each other, they can hear/speak.
>  
> Gateway already set up to accept calls from SER's IP. When i try to 
> dial a cellular/landline number as i can see results from ngrep 
> utility, SER routes the call to Gateway and step by step it's , 
> INVITE, RINGING... i hear ringing tone, and then internet connection 
> for computers/servers/voip devices in the ATA's sides are cut and ADSL 
> modems halts, i have to switch it off and on. after a time, not more 
> then 10 seconds my cellular rings, i open it and there's no voice 
> since the connection was lost with ATA's... Finally, i can say that 
> routing is working but why my internet connection is lost everytime 
> when i try to make a cellular/landline call...
>  
> I've tried to setup a STUN Server Setting in ATA's, i've tried with a 
> public STUN Server 66.7.238.210:3478 again that did not solved my problem.
>  
> Anyone have an idea ?
>  
> Thanks,
> Ozan Blotter
>