[asterisk-users] VOIP solutions

[Hans Witvliet]

On Sat, 2009-09-26 at 20:07 +0100, Alan Lord (News) wrote:
> On 26/09/09 19:42, Hans Witvliet wrote:
> <snip />
> 
> > What you can do (perhaps not the best solution...) is having one
> > asterisk server behind your firewall, serving all your local
> > sip-clients. And another at the other side of the firewall, only for
> > serving remote clients. And have both systems talking to each other with
> > IAX instead of SIP....
> >
> > In that case you _only_ have to allow port 4569 for IAX instead of 5060
> > and 10000...20000 for SIP
> 
> Hmmm, has anyone tried SIP over a VPN?
> 
> We are thinking of testing this but haven't yet...
> 

yes, even via satelite link.