[asterisk-users] Where is the Digium DS3 card?
Jay R. Ashworth
jra at baylink.com
Mon Apr 7 10:39:13 CDT 2008
On Mon, Apr 07, 2008 at 02:46:48AM -0400, Alex Balashov wrote:
> The point is that most people that want a DS3 interface really do want
> to pump in a DS3's worth of calls, more or less, in which case they
> really can't afford to have those DS1s going spare just for redundancy's
> sake. And if you are doing substantially less than a DS3's worth of
> calls, you probably shouldn't be looking at a DS3 interface to begin
> with unless that's just an incredibly lucrative way to get channelised
> PRIs in from a vendor - and with typical the cost of UNE DS3 loops vs
> T1s, that's not necessarily so.
My understanding was that the breakeven point for T-3 transport was
something like 8-10 T-1's; no?
> So yes, a single gateway handling a DS3 can go down. But so can an M13
> mux. You've got single points of failure either way.
Sure. But are the gateways as redundant as, say, that Adtran mux that
Steve was raving about?
> Yes, but total cost of ownership goes up because you need someone to do
> all that, and even so, despite the impressive uptime you mention, PCs do
> need a lot more maintenance, upkeep and worry.
>
> With dedicated media gateways, you just plug in, set up and it works.
And that's a point.
Cheers,
-- jra
--
Jay R. Ashworth Baylink jra at baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://baylink.pitas.com '87 e24
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