[asterisk-users] comparing pots solutions for asterisk

[Jay R. Ashworth]

On Thu, Jul 31, 2008 at 01:20:00PM -0700, Eric Fort wrote:
>    I've been looking at various solutions for getting FXS and FXO
>    lines in and out of asterisk. one solution is using TDM-400 cards.
>    Another solution is using the grandstream GXW400x and GXW410x
>    gateways. Cost per port seems lower on the gateways and no pci slot
>    is required. Why would one choose to use the TDM-400 cards? what
>    would be the advantages and disadvantages of each approach?

How many lines do you need to move?

We tend to use, for hooking up our analog agent phones, the
discontinued Zhone zPlex-10 T-1 channel bank... though I suppose that's
only cost effective, even at the $250 used we pay for them, if you
already need to have a T-1 card in the machine.  Going from a single to
a dual or a dual to a quad T card is cost effective.  Putting in a
T-card from scratch, maybe not so much.

Cheers,
-- jra
-- 
Jay R. Ashworth                   Baylink                      jra at baylink.com
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