asterisk users - Sep 2006 - Extensions busy/congested and "circuit-busy"

Our pbx is a Fedora Core 4 box running Asterisk 1.2.6. It has a  
public IP and is publicly accessible (no NAT, firewall, etc.).
Our Sipura 841 phones are in several locations, all NAT'ed behind PIX  
firewalls.
The system used to work flawlessly, but now any extension we dial  
comes back as "busy". On the Asterisk CLI, I always see something
like:

Got SIP response 488 "Not Acceptable Here" back from {our IP address}
     -- SIP/{extension}-d544 is circuit-busy
   == Everyone is busy/congested at this time (1:0/1/0)


Would extensions.conf or CLI debug output be helpful?

Thank you in advance!
Guy

That error message is almost always because the two sides cannot agree 
on a codec.  HOWEVER, if you are using SIPura and G726, there is a 
Makefile option for Asterisk to make it work.

Guy M Guyadeen wrote:
> Our pbx is a Fedora Core 4 box running Asterisk 1.2.6. It has a public 
> IP and is publicly accessible (no NAT, firewall, etc.).
> Our Sipura 841 phones are in several locations, all NAT'ed behind PIX 
> firewalls.
> The system used to work flawlessly, but now any extension we dial comes 
> back as "busy". On the Asterisk CLI, I always see something like:
> 
> Got SIP response 488 "Not Acceptable Here" back from {our IP
address}
>     -- SIP/{extension}-d544 is circuit-busy
>   == Everyone is busy/congested at this time (1:0/1/0)
> 
> 
> Would extensions.conf or CLI debug output be helpful?
> 
> Thank you in advance!
> Guy
> 
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
> 
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>