If you try to run 90 phones off a PC power supply you are asking for
trouble. It took years for digium to get the 4 analog port stuff to
work properly in a PC let alone 24 channels.
While in theory it will work, you are going to have MAJOR problems in
practice.
I gave up trying to build solid production systems from analog cards
in PC. If the project doesn;t have enough money to do the job
properly then I wouldn;t touch it.
If you are charging by the hour for installation and support and the
customer has limitless patience, you've hit upon a goldmine ;-)
Used FXS channel banks can be found for a few hundred $.
-bill
On 14-Nov-05, at 7:34 AM, Jeff LaCoursiere wrote:
On Mon, 14 Nov 2005, Kim Culhan wrote:
There seems to be a little confusion in this thread.. The
original posting
asked about using 4 TDM4xx cards to get ~90 FXS ports.
I think Jeff meant TE4xx cards which are T-1/E1 interfaces.
As for the TDM400P on FreeBSD, this should be no problem.
Just use the zaptel-bsd drivers on FBSD 6.0-RELEASE or 6.0-STABLE.
If anyone needs any help getting the source of this and
compiling, let me
know.
Actually I did mean 4 x TDM400P to get ~90 FXS ports :) I was
wondering
if anyone had attempted this in one chassis... I am considering
bidding
on a hotel's phone system upgrade, and cost per port is very
important,
obviously. I think I see three ways to reach their 90 rooms with
existing
cabling and analog phones. I can use T1 interfaces and channel
banks, and
with some of the pricing I have dug up so far this seems to be
around $100
/ port. I can use 4 x TDM400P (?) and get it down to $60. Then a
perhaps
hoky idea was to use around 50 dual FXS ATA devices, which potentially
gets it down to $35. I say potentially because I haven't used many of
these devices, and don't know if the sound quality of an
inexpensive ATA
is sufficient? Also this only makes sense if PoE is possible,
which is
something I haven't seen in literature on ATAs.
I saw Kim's earlier post about drivers for TDM4xx, which is what
prompted
the question, actually.
So, are the drivers for FBSD6 production stable? Would I be giving
myself
headaches to install this for a client? I would hate to fall back to
Linux, but stability is primary...
Thanks!
j
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