[SATLUG] Re: Need Touchtone Phones

Zeb Fletcher zeb.fletcher at gmail.com
Tue Dec 4 16:44:26 CST 2007


Not sure if this is what your looking for
http://cgi.ebay.com/Qty-of-2-Panasonic-3-Line-Phones-with-Speaker-phone_W0QQitemZ120191371020QQcmdZViewItem?hash=item120191371020

It is from the Ennes School district in Austin

On Nov 28, 2007 8:52 PM, Walt DuBose <dubose at texas.net> wrote:

> Vinny Huckaba wrote:
> > I have an old itt/sbc touchtone phone you can have.
> > http://p.office1000.com/vp4/ITT2500VBRIT5.jpg
> >
>
> Super...I'll be intouch
>
> > I setup a similar system back in the early 90's for our VFD/EMS.  I used
> a
> > televideo 955 terminal and a hayes 2400 bps external modem connected to
> a
> > low band radio 37.180mhz and a VHF 155.340 so that the S.O. could dial
> in
> > and page us via our handheld units with tone coded squelch.  They would
> dial
> > into the system, the modem would answer, then key up the transmitter,
> the SO
> > would enter the 4 digit code, then speak the message.  The 955 terminal
> was
> > used to page, send messages and program the modem.
> >
>
> More or less the same idea but codes will be input via the TTPad with two
> small
> speakers in the sides of the phone instrument.  This will be three line
> control...two for duplex audio and one line to ground for push to talk.
>
> The system will also eventually interface to a Linux PBX and go out via
> VOIP
> over longer distances than I have wire.  :-)
>
>
> > I tinkered with switching to 10 sec xmit and 10sec recv so that you
> would
> > have half duplex comm.  My setup was for proof of concept.  We ran it
> for
> > couple of years until the county decided to upgrade their repeater.  The
> > system is probably still sitting in the courthouse collecting dust..
> >
>
> Well I'm sure that the idea is still viable when cellphone do not work or
> in an
> area where there is no CP service.
>
> > I later installed a radio telephone interconnect for another Fire Dept,
> that
> > is still in use today as a backup system.
> >
> > All the schematics and documentation are somewhere in the attic...
> >
>
> I know the feeling.
>
> > --Vinny
>
> Txn and CULater.
>
> Walt
>
> >
> >
> > On 11/24/07, Walt DuBose <dubose at texas.net> wrote:
> >
> >>Oh, I also failed to mention that I have a full 8092.11b link to use but
> >>my WAP
> >>has died.
> >>
> >>I am hoping to be able to eventually use multiline PBX software on both
> >>ends so
> >>I can run the entire control over WiFi.
> >>
> >>I hope everyone had a wonderful Thanksgiving.
> >>
> >>Best Regards to All from Walt/ARS K5YFW...hope to see you in December.
> >>
> >>Walt DuBose wrote:
> >>
> >>>I am in need of 3 or 4 of the original AT&T/SWBell touchtone phones for
> >>>a command and control system I am building.  The Touchtone pad can be
> >>>missing from two of the phones.  If the phones are multiline phones,
> all
> >>>the better.
> >>>
> >>>The idea is to build a remote command and control function that will
> >>>work via telephone lines over a distance of a mile but more practicaly
> >>>as far as the length of 8 pair cable I can get will work.
> >>>
> >>>The system will be able to control one of the new ICOM  dualband radios
> >>>that allow for full radio control via touchtone.  Another telephone
> will
> >>>be used to control an HF Rig.  The third and fourth phones will be able
> >>>to control LMR radios.
> >>>
> >>>Also, the 3rd or 4th phones will act as and intercoms between the
> remote
> >>>and communications unit.
> >>>
> >>>I would like to get some of the handsets that had PTT switches in them
> >>>but if I can't, I can add micro-switches to the handsets.
> (Hummmm...does
> >>>anyone have a red phone :-) )  Color of the phone doesn't matter.
> >>>
> >>>This is basically what I worked on back in the early 60's in commercial
> >>>2-way radio and later in the early 80's in the Air Force Reserve.
> >>>
> >>>While on a technical subject...I hope some of you have or will consider
> >>>getting phone patches connected to your HF rigs...this is a GREAT way
> to
> >>>relay voice traffic from a deployed area back to a operations center.
> >>>
> >>>I'd appreciate any assistance that you can provide.
> >>>
> >>>Please contact me at k5yfw(at)arrl.net or dubose(at)texas.net
> >>>
> >>>Thanks and 73,
> >>>
> >>>In His Love and Care,
> >>>
> >>>Walt/K5YFW
> >>>
> >>
> >>--
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