No subject

<asterisk-users at lists.digium.com> 
Subject : Re: [asterisk-users] Multiple SIP phones behind a Linksys 
firewall 
Date : Sat, 2 Feb 2008 18:25:16 -0700
> And the firewall is in between the phones and both servers or are you 
registering the phones on a local server and trunking to the other server 
through the firewall? 
> 
>  In terms of nat and Cisco 7960s I've never had a issue registering two 
of them behind nat to a server on the other side, however, if you called 
one phone from the other, you'd end up with one way audio. 
> 
> 
> 
> -----Original Message-----
> From: Greg Oliver <greg.oliver at cistera.com>
> Sent: Saturday, February 02, 2008 2:15 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion 
<asterisk-users at lists.digium.com> 
> Subject: Re: [asterisk-users] Multiple SIP phones behind a Linksys 
firewall 
> 
> 
> 
> On Feb 2, 2008, at 2:11 PM, John Von Essen <john at quonix.net> wrote:
> 
> > I posted an email a few days regarding a problem with hearing the
> > voicemail greeting on my sip phones.
> >
> > It turns out to be a phone/stun/linksys issue - not an asterisk issue.
> > Which brings up a couple of questions....
> >
> > I always assumed that you can have multiple SIP phones behind a  
> > Linksys
> > firewall/router (WRT54G) all using the same STUN server/port.
> >
> > But apparently thats not the case. Is it a Linksys bug, a  
> > Grandstream bug
> > in the BudgeTone-100 phone, or am I off base and just doing something
> > wrong?
> >
> > I cleary have problems as soon as I try to use a second phone behind  
> > the
> > Linksys - registration issues, cant hear voicemail greeting, etc.,.
> >
> > My next test was to run multiple STUN servers on the same machine with
> > different ports. Then, for my multiple SIP phones behind the  
> > Linksys, have
> > each phone use a different stun port.
> >
> > Any thoughts?
> >
> > John
> 
> I have 3 phones connected to 2 servers behind a 54g running openwrt  
> with no stun or any special configuration. I am running cisco phones  
> which do nat well natively.
> 
> -greg
> >
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