Re: [Linphone-users] how to use linphone in a private network behind firewall/gateway

[Alastair Johnson]

Sounds like a firewall problem, but you haven't given much detail of 
your situation. Getting SIP through firewalls can be tricky and there 
are many things that can go wrong. There are multiple ports used by SIP 
for setting up the call, and RTP for passing the audio /video data, and 
they are variable. A comprehensive answer would be huge, so here are 
some pointers for further reading.

The most common solution is to use STUN, but in some situations (like 
mine) it's unreliable. I can't give you any pointers on that as it 
doesn't work for me.

If you have control of your firewall I suggest using an outbound proxy 
such as siproxd since this makes life much simpler, especially as you 
have multiple clients behind the firewall. Siproxd has config examples 
for running it both on and behind the firewall, depending on what suits 
your situation. This includes which ports will need forwarding and where 
to. I haven't had a problem since I installed this. Outbound proxies are 
 increasingly appearing on ADSL routers, so if that's what you're using 
t might be worth checking the manual.

If you don't have control of the firewall then you'll have to speak 
nicely to firewall admin ;-) Good luck!

Harishkumar V wrote:
> Dear All,
>
> I have installed linphone-3.0.0 release with plugins in 2 linux x-86 
> machine's running fedora core 8 release.
>
> i created 2 sip accounts in sip.antisip.com <http://sip.antisip.com/>.
>
> firstly, in lan , i tested linphone using this setup,
>
> user a -> sip:address@hidden <mailto:address@hidden>
> user b -> sip:address@hidden <mailto:address@hidden>
>
> it worked, voice is working. video not tried.
>
> now i tried to test in my real network,
>
> i am in a private network behind a firewall/gateway which is connected 
> to internet.
>
> in this test, the sip registration itself failed.
>
> in linphone debug, no response from sip.antisip.com 
> <http://sip.antisip.com> timed out came.
>
> in my terminal, if i try to ping sip.antisip.com 
> <http://sip.antisip.com>, it will resolve but will not ping as the 
> firewall/gateway is in place.
>
> guys help me in sorting out this.