Stephen G wrote:
Hi there,
I'm looking to set up a home-office PBX/Asterisk lab using a VIA EPIA
motherboard as an always on, low powered solution.
I am trying to find out the differences between a solution using an external
ATA (like the Sipura SPA-3000) or an internal PCI card (like the Sangoma A200
with 2 FXO 2 FXS ports).
Can someone tell me what the major functionality and limitations are when using
the two devices with Asterisk? I am looking for things like configuration,
power draw, sending faxes, etc.
So far I have these:
Sipura SPA-3000
-------------------------
External - can be located remotely from Asterisk server, can be used with an
embedded solution (NSLU2) or a server with no PCI slot (smaller footprint and
lower power draw). The problem with this is that there are more power
blocks/adaptors needed. Draws about 5W (according to the statistics).
Ports - 1xFXO and 1xFXS
Cost - 80 UK pounds
Features not in Sangoma A200:
Sangoma A200 (A20101)
------------------------------------
Internal PCI - half or full hight.
Ports - 2xFXO and 2xFXO, power consumption ???
cost: 200 UK pounds
Features not in Sipura SPA-3000:
One of the biggest differences is the spa3k is rather limited in terms
of echo cancellation. If your pstn line is outside the limits of the
spa3k's echo canceller, you'll have less then acceptable audio quality.
Unfortunately, there isn't any nice way to identify your pstn line
characters (etc) without trying it.
Also, a few users complain about voice interpreted as dtmf signaling
under some circumstances.
Having spent two years with the spa3k in multiple environments, I'd
suggest your alternative choice of the A200 card is a better one. Power
consumption has nothing to do with your choices really.
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