From: John Lundgren
Subject: Re: Phone connecting to audio lead
Date: 1998/03/04
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Organization: Rancho Santiago College
Newsgroups: alt.dcom.telecom,alt.support.telecommute,alt.technology.misc,comp.dcom.telecom.tech,fido.phones,rec.audio.tech,uk.tech.misc,uk.telecom
Adrian Webb wrote:
> I want to connect my telephone extension socket to an audio lead. On the UK
> domestic phone lead there is 4 wires. Which ones are the audio and audio
> shield? I've heard that telephone leads are digital and so none of them are.
> This can't be true can it? I mean a cheap 7.50ukp phone thats converts
> digital signals into analogue. The power must be separate from audio.
> On a phone doubler, it is like audio isn't it, in that one wire splits off
> into two, sending out two audio signals for two phones? This is what i want
> to do, but one of them connecting to an audio lead.
You need to do some serious reading about how the telephone signal is
carried from CO to your house. Radio Shack had a good book on that, but
I don't think that's available where you're at. IN any case, your
assumptions are wrong.
To sum it up, you cannot just connect the telephone jack wires to an
audio input. If you do, your telephone will quit working, you may be in
for a very, very nasty surprise if a lightning storm comes by, and you
may get charged by the telco if they find that you have caused a major
problem.
> --
> Adrian Webb also at:
> Adrian.Webb@discovery.dmpriest.com
--
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