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denver218Flag for United States of America

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Migrating from Traditional PBX to Cisco VOIP

For the Current PBX system, the Telco delivered an Adtran, off the Adtran there is an amphenol cable that is punched down to a 66 block.  There is also a CAT5 off the adtran that is also punched down to a 66 block.  

I am installing a Cisco VoIP solution,  but I am not sure how to connect my Cisco voice gateway router with a PRI/T1 card to the Adtran.  I'm not sure if the telco will have to hand the circuit off to me another way, or if I can just connect to the adtran using the ethernet port.  I'm having a lot of trouble getting info from telco.    Could anyone lend me some insight on this and their experiences?   I do have some VOIP experience, but no experience with traditional pbx, 66 blocks, etc.  Thanks.
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Bryant Schaper
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You will more than likely need to terminate the T1 to your Cisco router with a PRI card.  Not sure what solution you are using, I assume Call Manager Express on the router itself and not call manager correct.

The adtran is taking in the PRI and just breaking out the channels to analog lines I assume, if you can clip a butt set you should hear dialtone.  From the 66 Block are your going to your PBX as a T1 now, I have seen telcos do this, Centurylink supplies their VoIP service via Ethernet/t1 to the adtran, the adtran can then break out a voice T1 and an Ethernet connection for other IT equipment.  If that is the Case your PRI can connect to a PRI card in the router as well.

Can you provide more details of the wiring
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I've reached out to someone onsite now, to see how the PBX connects to this.  At the moment I know they have the attached adtran, and both the amphenol cable and CAT5 cable you see are punched down to a 66 block.  Do you think I could connect my PRI/T1 card in my router to the port the yellow cable connect to?  Then just unplugged the the amphenol cable?  Thanks for helping.User generated imageUser generated image
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Bryant Schaper
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