In a CCM5 deployment, outbound calls to telco (through a pri line) drop with a "Requested circuit/channel not available" error code. The funny thing is that incoming calls connect fine and that when i connected the same pri line to another pbx, the outbound calls were connected alright! Any ideas??
So the outbound calls don't go through? Or they connect, you talk for a while then drop with that error code?
Some PRI carriers have a special mechanism such as AT&Ts MEGACOM service. You need to select that service in the route pattern. Somewhere near the bottom of the route pattern screen.
Ok, I booted my lab CCM. It's called ISDN Network-Specific Facilities Information Element.
You need to choose the proper ISDN Switch type under Network Service Protocol then the appropriate Network Service. I haven't had to fill in the other fields, but you may need to depending on the service.
Thanks for your answer but unfortunately it has nothing to do with the ISDN switchtype (which by the way is correct).
Due to some problem (misconfig?), the MGCP binding doesn't seem to function properly and after every router reboot, the PRI has to be brought down, shut the MGCP service and then let the CCM do the configuration in order the PRI to work again...
SIP traces provide key information in troubleshooting SIP Trunks, SIP
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Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
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CUCM Database Replication is an area in which Cisco customers and
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