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Analog Gateway for Cisco VOIP network

Posted on 2016-10-06
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Last Modified: 2016-10-28
I setup CME and unity connection for a retirement community.  At the time of the setup, this was only for the "business entity", not the residents that live in the community.  The phone system the residents use is an old digital system that is on its last legs and they can't get parts for it anymore.  They asked if I can put them on the Cisco system.  They want to continue to use their 2 wire phones, no Cisco IP Phones for the residents.  There would be about 50 analog phones for me to connect.  They do not have CAT5 ran to all the resident rooms, just standard wires for a regular phone, which all run to a dmarc.  At the Dmarc could I install an analog gateway to attach these 50 phones, and then assign them their same DID number once I port all the numbers from their old phone system to the Cisco?
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Question by:denver218
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by:masnrock
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What do you mean by digital phone? If you mean as in a digital PBX, you're probably not even going to be able to use the phones. With adapters, you could use analog ones.

At the demarc, you may need to check the wiring. Are they RJ-21 connections? If so, you should be able to use those. Just give some more detail, and that will help better answer your question.
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by:arnold
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You are looking for 50 ATA's one foreach resident distance of wire may require rewiring.
Age of wire ,..
How many simulteneoys outgoing calls do you have.

How many users does your cme support?

The digital system what is coming in? Isdn, pri/2 ?

Have you discussed the options with the telco?

How many FXs lines can your system support?

Do you need the residents to be able to call each other without using a telco feed...
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Phonebuff earned 200 total points (awarded by participants)
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So, as Mansrock mentioned a "Digital" phone is not an analg phone, and most of the older Digital systems were proprietary in nature so you will probably have to dump the phones along with the PBX-

If they don't want to invest in IP phones, and cable, then find a good Analog handset like the VTec Hotel phones
http://www.vtechhotelphones.com/

An then use Cisco Voice Gateway Adapters to link the Analog sets / cable Demarks to your CME..
http://www.cisco.com/c/en/us/products/collateral/unified-communications/vg-series-gateways/product_data_sheet09186a00801d87f6.html
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