[Asterisk-Users] Qs about FXO/FXS cards

brian at txshirts.com brian at txshirts.com
Mon Jan 3 19:23:29 MST 2005


My cost analysis showed that * is a slam dunk for the $ per feature.

Heck adding voicemail from Nortel is about a $1000 venture by itself
(call pilot, used).

And that is just the start.  Granted, programming text files is
vexing... But if you hate that try programming with a 10 key and a 2
line interface on a nortel KSU.  And btw, Nortel is one of the better
ones for documentation.

TDM400 has been reliable, it's just a bit squirrelly to get the options
set right.  I think in the greater scheme of things Digium produces a
nice product and * is hard to beat.

I think the quality of the power, system, and power supply can't be
underrated when doing telephony.  Everything I've read points to less
then desirable results with sketchy hardware. 


Brian Greul
Texas Shirt Company
www.txshirts.com
713-802-0369 / 713-861-6261 (fax)

-----Original Message-----
From: Andrew Kohlsmith [mailto:akohlsmith-asterisk at benshaw.com] 
Sent: Monday, January 03, 2005 2:25 PM
To: asterisk-users at lists.digium.com
Subject: Re: [Asterisk-Users] Qs about FXO/FXS cards

On January 3, 2005 03:07 pm, Steven Critchfield wrote:
> And we come full circle to a comment I made before that TDM cards are 
> more for hobbyist than for real serious installs. A real install is 
> probably going to use a T1/E1 interface and bypasses all the troubles 
> listed in this thread.

Unfortunately that makes Asterisk installs for small businesses more
expensive than necessary.  At US$500 for a T100P and US$300ish for a
channel bank (FXS only, FXO is significantly more expensive!) plus your
time and system for an Asterisk install it raises the bar for the small
business to adopt Asterisk.  
The TDM400P would fit a very nice little niche if it worked reliably.

Let's face it -- most businesses are looking at VOIP to reduce their
telephone bills and if the time it takes for the install to pay for
itself is raised significantly (like an added $1000 price tag for
reliable equipment)... 
well... the writing on the wall is pretty clear.

-A.
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