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                      %   HOW TO BUILD THREE WAY FONES   %
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                      %  !THE REFLEX & Omnipotent, Inc!  %
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For a three way phone, you need:

  1) Any telephone with call waiting.
  2) A two-way switch with two terminals

First, remove each of the modular terminal covers (box the telephone is screwed
into which the phone line enters).  Then, take the green wires from each box
and attatch them to one side of the switch.  On the other side, attatch the red
wires (make sure each line is paired up parallel to the other!).  When you flip
the switch with a person already on the line, you should hear a dial tone and
then be permitted to dial out.  When the person on the other line answers, you
will be speaking to both callers on the line. Neat huh?

                                      ====
                                      =OR=
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                               CONFERENCE CALLER
                               -----------------

If you have two phone lines, you can this simple attachment to set up your own
conference calls.  You'll never pay to have an operator set them up for you
again.  Once you've called the two other people on your two lines, you just
throw the switch.All three of you can now talk to each other.

Phone lines carry voices as audio frequencies superimposed on DC control
voltages (around 40-50 volts when not in use, with higher pulses when ringing;
around 10 volts when a phone is being used -- I forget the exact numbers, but
those are close.)

The two lines can be connected through capacitors, so the audio passes between
the two, but the DC voltages don't interfere with each other.  (If you simply
short the lines together, the phone company may not like it!)

Use this simple circuit:

     ! !

 red --------! !---o: o------ red
     ! !    :
(line 1)    :   (line 2)
     ! !

green--------! !---o  o------green
     ! !
      ^     ^
       capacitors  DPST
       .1 to 1 uf  switch
    (not critical)
(do *not* use polarized electrolytics!)

(This circuit is similar to the other conference caller mentioned on the Roman
Forum, which doesn't have the capacitors.)