On Fri, 22 Jul 2005 12:28:34 UTC, Andy Hall wrote:

On 22 Jul 2005 11:02:57 GMT, "Bob Eager" wrote:
I have one ISDN and one POTS line. I have a phone in each room. I plan
to use MSN or DDI to allow different rooms to ring on selected numbers
being called. I want distinctive ring for each member of the family. I
want intelligent route selection.

I've done this for some years.

I have two ISDN2e lines and one Business Highway line, each with MSNs.

These are connected to an ISDN PABX (Agfeo AS40) with a mix of
analogue extension lines, internal ISDN lines for faxes and routers.

For now I'm going to use a CyberGear Gold...but am building an Asterisk
box to replace it.

The Business Highway line gives me emergency phone coverage should the
PABX go tits up - it's on a UPS to cover power failures.

Yes, mine is HH but will be converted within a few weeks. The incoming
line is right next to the equipment rack, and it'll be on the UPS in
that rack. Not that it matters as line 1 will work without power.

Incoming calls on different numbers ring selected extensions and with
different ring tones. Each of the kids has their own numbers and the
PABX logs the calls for billing them.

There are extension sockets throughout the house, including the attic
(in case I am up there tending servers etc. and the phone rings),
small rooms, garage, detached workshop, cabin, shed and external in
the garden.

Exactly...at least one extension in each room (living room has three, to
allow for reconfiguration of the room, and provision of line for Sky box
if ever needed.