We have a 2811 with CME on with 12.4.15 code on and two ISDN BRI lines. The problem we are experiencing is that outgoing calls are intermitantly working. This is not due to load as I'm the only one on these lines. I can use all four lines if I'm really lucky. What is strange though is that I can type in the number and hit dial and it IMMEDIATELY starts ringing. It does this sometime even when the BRIs are shut??? It doesn't give an enganged tone or anything, I get a sound like it's ringing on the other side. Then other times I hear a bit of delay and then I can see the call go out. Any thoughts, please. This is driving me nuts.
Thanks for the response. The problem ended up being a voice port that was actually a FXS port that was being used as a dial peer. The dial pattern was hunting between all the dial peers and thus it tried to phone out using a FXS every other time.
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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