[cisco-voip] Maximum POTS lines on a 2921 router

[Mike King]

Just to explore the channel-bank idea a little more fully...

We have 23 POTS lines.

Would the channel bank need FXS or FXO ports.....

I'm assuming that the phone company is dropping FXS ports, so the Channel
bank would need FXO?


Phone Company -- POTS(FXS?)  --- (FXS?) Channel Bank ---T1--> 2912 Router


Mike


On Wed, Dec 30, 2009 at 11:17 AM, Doug McIntyre <merlyn at geeks.org> wrote:

>
> Might be easier to setup a channel-bank with a bunch of FXO ports to
> terminate the analog lines into a T1 and feed the T1 back to the 2921 for
> the gateway function. Something like an ADIT 600 or the appropriate Adtran
> TSU,
> and the stock VWIC T1 card on the 2921 rather than mess with all those
> cards.
>
> And at the prices the LEC's charge around here for 1FBs vs. PRIs,
> switching to a PRI directly would probably pay the NRC and CPE charges
> in less than 6 months when you are talking 23 1FBs.
>
>
>
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