[mythtv-users] OT: anyone know the rj22 pinout on the phone handset spiralcord?

Carl Fongheiser carlfongheiser at gmail.com
Sun Jan 8 12:30:50 UTC 2006

On 1/8/06, anders smith <4nders at gmail.com> wrote:
> This is really off topic and I apologize, but you are the most
> knowledgabe tech guys I know so here goes:
> I'm trying to make my old K handset into a computer voip handset, but
> can't find a wiring diagram for the rj22 handset connector and I don't
> have a full electronics setup.
> I'm trying to figure out which the 4 wires are mic and which are the
> speaker wires, are so I can make a female connector.... any
> suggestions?

As with most things related to the PSTN, it's not quite that easy.

There's a circuit that might work for you here:


Carl Fongheiser
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