Seems like your x-lite is never receiving the reply that asterisk should
be sending. Watch the packets with ngrep or ethereal:

ngrep -d any -Wbyline -t port 5060

You should see an incoming REGISTER packet, and an outgoing OK (or 4xx
authorization required). The OK is never reaching x-lite. The most
likely reason is that you're natted and x-lite isn't successfully
overcoming the nat using its built-in logic (much of which relies on
STUN). Try fiddling with your x-lite settings and/or trying it somewhere
where you're not natted.

On Thu, 20 Jul 2006 at 11:19 -0600, Kenneth Burgener wrote:
> I installed Trixbox 1.1 over the weekend. I then setup 3 extensions 101,
> 102, 103. I have clients on my local network, both of which are using
> X-Lite 3.0. I am able to connect from both clients, and I am able to
> call the other extension. It appears that I have a good working setup.
> 
> I then wanted to try and connect externally to my server. I set my
> Linksys router to have my Trixbox as DMZ. When I open X-Lite I see:
> 
> Initializing...
> Discovering Network...
> Registering...
> 
> and about this point in the asterisk logs I see:
> 
> "Jul 20 11:02:21 DEBUG[2341] chan_sip.c: Allocating new SIP dialog for
> d40f6810b21c090bMDhjOGMzYTBiNWQ5MjYyN2YyNGZlZDg3OGFmZDgzMjU. - REGISTER
> (No RTP)"
> 
> eventually X-Lite reports:
> 
> "Registration error: 408 - Request Timeout"
> 
> If I close X-Lite and reopen I see in the asterisk logs:
> 
> "Jul 20 11:03:04 DEBUG[2341] chan_sip.c: Auto destroying call
> 'd40f6810b21c090bMDhjOGMzYTBiNWQ5MjYyN2YyNGZlZDg3OGFmZDgzMjU.'"
> 
> So it appears that the external client is connecting, but not making a
> full connection.
> 
> For comparison, the internal clients cause the following logs when they
> successfully connect:
> 
> "Jul 20 11:13:19 DEBUG[2341] chan_sip.c: Allocating new SIP dialog for
> c71e6e16bf14e405NTJlZWM0MzM5YTI0NTBmYzAzYjQxYjhkZGJiMDlmNDg. - REGISTER
> (No RTP)
> Jul 20 11:13:19 DEBUG[25663] app_queue.c: Device 'SIP/103' changed to
> state '1' (Not in use) but we don't care because they're not a member of
> any queue.
> Jul 20 11:13:20 DEBUG[2341] chan_sip.c: Allocating new SIP dialog for
> 7535b2683c49c528NTJlZWM0MzM5YTI0NTBmYzAzYjQxYjhkZGJiMDlmNDg. - SUBSCRIBE
> (No RTP)"
> 
> Any idea what might be causing this?
> 
> Thank you.
> Kenneth
> 
> /*
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-- 
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right keys at the right time and the instrument plays itself.
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