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Re: How does a telephone handset work?

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Wanderer <wanderer@dialup4less.com> wrote:
>
> I want to rig up my computer to be a tty/tdd set for the hearing impaired.
> I found this software.
>
> http://www.dxsoft.com/en/products/calltty
>
> I'm trying to avoid building the circuit.
>
> I was thinking of using of these instead.
>
> https://www.ebay.com/itm/CallTel-RJ9-Jack-to-3-5mm-Dual-Plugs-PC-Card-Y-Training-Adapter-Cord-2-MUTE-Keys/261885051425?hash=item3cf990c221:g:8LQAAOSwPhdVUZfI
>
> These things are designed to connect handsets to the sound card, but I
> want to connect the sound card to the handset connector on the phone.
> Does that work? How does the handset communicate with phone?

https://en.wikipedia.org/wiki/Modular_connector#Handset_wiring

Thank you,

--
Don Kuenz, KB7RPU

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Thread

How does a telephone handset work? Wanderer <wanderer@dialup4less.com> - 2017-12-21 12:04 -0800
  Re: How does a telephone handset work? Don Kuenz <g@crcomp.net> - 2017-12-21 23:33 +0000
  Re: How does a telephone handset work? Jasen Betts <jasen@xnet.co.nz> - 2017-12-22 20:08 +0000
    Re: How does a telephone handset work? Wanderer <wanderer@dialup4less.com> - 2017-12-22 13:49 -0800
      Re: How does a telephone handset work? rickman <gnuarm@gmail.com> - 2017-12-22 18:49 -0500
        Re: How does a telephone handset work? Wanderer <wanderer@dialup4less.com> - 2017-12-22 16:37 -0800
          Re: How does a telephone handset work? rickman <gnuarm@gmail.com> - 2017-12-22 22:45 -0500

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