Martin Allen wrote:
Asking about inserting Asterisk between a 4 line analogue PBX and the
outside world...
The proposed solution (with 4 x FXO and 4 x FXS using 2 TDM400 cards)
will work fine until the asterisk box dies or suffers power failure.
An alternative may be to use 4 Sipura SPA-3000 ATAs (which have an FXO
and an FXS port as well as an RJ45 network port (think of them as two
ATAs an a single box...) and are cheap (see http://www.voiptalk.org )
PSTN
*************** ||
* * SIP to FXO +-----------+
* Asterisk * -----------------------------| |
* * |SPA-3000 |
* * -----------------------------| |
* * SIP to FXS +-----------+
*************** ||
PABX
In the event of power failure the FXO port is switched directly to the
FXS port, effectively bypassing the IP side of things completely.
Actually, I think you *could* build what you're describing just with the
SPA-3000s, but you would, of course, lose a lot of flexibility...
jd
--
John Daragon [EMAIL PROTECTED]
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