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From: "Michael A. Terrell"
Subject: Re: passive circuit excitation
Date: Wed, 08 Jan 2003 00:55:51 -0500
Organization: Have you seen my bench? No, really! Where is it?
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References: <3E171373.email@example.com> <3E1AEAF7.firstname.lastname@example.org>
Joe Legris wrote:
> P!erCer wrote:
> > All phones sold in the United States are required to broadcast signals
> > so hearing aids can pick them up. The hearing aid runs off the EM
> > signal in addition to the actual sound. This might be worth looking
> > onto.
> That sounds improbable for 2 reasons:
> 1) I've never heard of such a thing and have never seen evidence of
> transmitters in telephones.
> 2) If the hearing aid works, why not just amplify the sound of the
> phone? It's not the hearing that cannot hear, it's the wearer.
> Best regards,
> Joe Legris
Wrong. Public places like hotels and airports are required to have
phones that can be adapted to an amplified handset for the hearing
impaired. That means the PBX or switchboard will support some of the
standard WE 500 type phones, and you simply replace the handset for one
with a volume control for the built in amplifier. Easy on Modular sets,
takes a few minutes on the older hard wired (Screw / push on terminal)
Michael A. Terrell
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