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How to choose the right voice module.

Hi Friends,

I'm new to VoIP and I need to buy a voice module for a Cisco 3640 in order to configure a half PRI E1 (15 channels) it will be connected to an Adtran Express 6541 (I will need a balun), which is right module that I need?

Erick.

1 REPLY
Cisco Employee

Re: How to choose the right voice module.

Here You Go:

Digital Packet Voice and Fax Trunk Network Modules

http://cisco.com/en/US/products/hw/routers/ps274/products_data_sheet09186a0080091f6f.html

Also since the 3640 is pretty old you may have to check availablity of the modules with your reseller

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