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New Member

Hardware requirement for voice/fax channel from T1?

Hi all,

I don't know if this is the right forum, but I am looking for validation on my interpretation of hardware requirements.

The scenario:

I currently have a T1 coming in to the facility and terminating into a vendor-supplied Adtran box which splits off one of the channels from the T1 for voice/fax use (the Adtran has a centronics-style connector going to a 66 block)

I am also in the process of ordering ADSL service to supplement the bandwidth for non-business usage.

Rather than end up with a solution involving an adtran, ADSL modem, and router or two... I want to combine all services into a 1751 chassis.  My only concern / confusion is how to 'split' off the single voice channel from the T1.  There is a phone # associated with the voice channel.

I believe that I will need the router, a multiflex T1 WIC (VWIC-1MFT-T1), ADSL wic (WIC-1ADSL-DG), and an FXS card such as the VIC-2FXS

Am I close here, or completely off base?  Any input or suggestions would be appreciated.



Hall of Fame Super Gold

Hardware requirement for voice/fax channel from T1?

That can be done, but the hardware you mentioned is very old and not supported anymore, you should use at least an ISR G1 like a 1841, 2801, or 2901, with the appropriate cards.

Also you should get from telco the exact details of all service present on the T1.

New Member

Hardware requirement for voice/fax channel from T1?


Thanks for the reply - I guess I'm just trying to figure out if the way I described is the 'concept' and correct WIC/VWIC combination of how to get an analog dialtone from a T1 channel while leaving the rest for data.

I know there are probably many more benefits to going with a more modern router, but this is for personal use (the T1 is tied to a business account, but hosted in my house and maintained by me) and I can't really get an ISR in my price range - 1751s, on the other hand, are easy to come by and affordable - I just want to ensure I can have a single line available for Fax



Hall of Fame Super Gold

Re: Hardware requirement for voice/fax channel from T1?

You're welhcome, please remember to rate useful posts clicking on the stars below.