Voice Gateway not allowing outside calls to IP Phones

Unanswered Question
Jun 26th, 2007

My current setup is:

2851 Gateway with a 4 fxo card installed

PBX phone line plugged into port 0/0/0

CCM v 5.1

I can call any internal office number and any off site local or long distance number from my IP Phone through the PBX with no problems but when I try to call an IP Phone say DN 3000 I get one ring then a busy signal.

I tried adding the PLAR 3000 command to voice-port 0/0/0 and that did not help.

I have all my route patterns running on the CCM

I am using MGCP


I have this problem too.
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vmoopeung Mon, 07/02/2007 - 14:00

Could you please do a CCM trace and see whether the dialled didgits are sent with the appropriate prefix

Paolo Bevilacqua Mon, 07/02/2007 - 14:11

Well the thing is that because from the point of view of the PBX the router is just an extension, PBX will never outpulse any digit.

And I think the connection plar won't work because you have configured MGCP.

If you want to make a serious bidirectional integration with the PBX, you need to use some digital card like ISDN BRI, PRI, at very minimum E&M.

Or, configure CCM to that when PBX rings the FXO port, it does something. The alternative is H.323 for the gateway, and have use connection plar (opx) to dial a single extension.

Hope this helps, please rate post if it does!


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