THAT-1
Telephone Handset Audio Tap
User Guide
JK Audio
Connection
THAT-1 connects between the handset and the base of
your telephone. Follow these simple steps…
1. Unplug the modular handset cord from your telephone base.
2. Using the black handset jumper cord that we have
provided, connect the Telephone jack of THAT-1 to
the handset jack on your telephone base.
3. Plug your handset cord, and handset, into the Hand-
set jack on THAT-1.
4. Connect your audio equipment to the line input and
output jacks on THAT-1.
Not for use with telephones that have a keypad in
the handset.
Handset w/
modular plug
Telephone line
to wall jack
Audio equipment or
powered speakers or
computer Mic input
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Operation
To Phone Jack
This is a line level input for signals that you want to send
down the phone line. This jack can be connected to an
audio output such as the headphone output jack on a
tape recorder, the line output of a PC audio card, or the
line output from a CD player or audio mixer.
From Phone Jack
This is a variable mic level output from the telephone
line.This jack provides a mix of both sides of the
conversation. In other words, whatever you send down
the phone line will come back on this jack mixed with the
audio from the other side of the call. This is not
adjustable. We picked a suitable mix ratio for most
telephones.
The supplied adapter cable allows you to take the left
channel from a 1/8" mini stereo headphone or mono
microphone jack and attach it to the RCA jack on THAT-1.
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