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
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