How about using an old Analog 1232 ( if you have one) then you can move
some old equipment and save them money.
On Thu, 20 Nov 2003 08:01:40 -0500 Carl Navarro <[EMAIL PROTECTED]>
writes:
> At 12:25 AM 11/20/2003 -0500, David Lesher wrote:
> >So a friend lives in a ~16 suite condo. The existing door/intercom
> >is junk. The apartment sets are as study as the old Soviet Union
> >phones I saw in the Third World -- breath on them and they break.
> >
> >So, replacement choices...
> >
> >Most such systems use an outgoing line and a speeddialer. That's
> >~$270/year for the POTS line. With a 100 unit building, that's
> >no sweat; with 16 it is.
> >
> >Eons ago, there were systems that physicaly broke broke the called
> >apt's T & R and rang with local ring/battery. Do they still exist?
> >
> >I was thinking the better idea would be a KXTD816 or such with
> >no CO lines attached. The advantage is, the subscriber sets are
> >whatever the owner wants: Radios Hack, K-mart etc.
> >
> >For the front door, I'd need one of the panel mounted
> >speakerphone/speed dialers. I see them {"Hit #[apt no] to call;
> >* to hang up"}.
> >
> >What say the Brain Trust?
>
> Depending on what you started with in terms of cable pairs, you
> might
> consider a Valcom 136 RT intercom. It has all of the elements you
> need and
> an extremely low cost.
>
> You'll need a minimum of 4 wires to a unit (T,R,B,R) and a 5th if
> you want
> to use a button to release the door. The talk path and ground is
> common to
> all phones. The beauty of the system would be that in a closed loop
> you
> don't need a Viking lobby box or station dialer or a phone line.
>
> Of course you have to sell the customer on having a phone, a button
> and a
> buzzer to replace the intercom they now have :-)
>
> Carl Navarro
>
>
>
>
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>
Chris Snyder
Advantage Telcom
Cosby, Tn.
Sevier County's oldest interconnect.
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