howto simulate a pri on 2600

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Aug 20th, 2007
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I have a 2651XM with a 1DSU-T1 and a WIC-2MFT-t1 and need to use either of these WIC's to simulate a PRI. I assume this is possible, but have not been able to find any info on it. The phone guys have asked if there was a way to get them a PRI to test remote office PBX's before they ship.

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arcaidy76 Mon, 08/20/2007 - 11:16
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Are you using the with Call Manager or another IP PBX?

pacameron Thu, 09/06/2007 - 06:09
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You can simulate a voice PRI on a 2600 as long as you have DSP resources. If you want to make voice calls through it, the easiest way is to use something like a NM-2V card with VIC-2FXS , the AIM-VOICE-30 DSP card and a VWIC-1MFT-T1 card.


The following config would work -



isdn switch-type primary-ni


network-clock-participate wic 0

network-clock-select 1 t1 0/0


controller t1 0/0

pri-group timeslots 1-24


interface serial 0/0:23

isdn switch-type primary-ni

isdn incoming-voice voice

isdn protocol-emulate network


dial-peer voice 1 pots

incoming called-number .

port 0/0:23

direct-inward-dial


dial-peer voice 2 pots

description - calls to PRI

destination-pattern 1...

port 0/0:23

prefix 1


dial-peer voice 3 pots

description - calls to FXS ports

destination-pattern 2...

port 1/0/0




we use these configs all the time in the lab as PBX simulators . You need a T1 cross over cable to bring up the interface -


1 ---- 4

2 ---- 5

4 ---- 1

5 ---- 2



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