AT&T Headphones TL7612 User Manual

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Lifter adjustments and testing
1. Make sure that the headset base is set to
LIFTER MODE and that the
LIFTER AUDIO ADJUST setting is correct.
2. Turn the switch hook presser adjustment
knob until the switch hook presser is just
above the switch hook.
3. Lower the lifter arm until the switch hook
presser holds the switch hook down.
4. Place the corded handset on the lifter.
5. Press ON/OFF on the headset. The switch
hook presser should rise and release the
switch hook on your telephone base. Make
sure you hear a dial tone through your
headset earpiece.
6. If the switch hook is not fully released, turn
the ADJUST LIFTER knob while the corded
handset is on the lifter. When the switch
hook is fully released, you will hear a dial
tone from the headset.
It may take some adjustments and testing to
find the right position for the lifter. For the
lifter to work properly, the switch hook must
release completely when you press ON/
OFF
to turn the headset on. The switch hook must
also be held down completely when you press
ON/OFF to turn the headset off.
Headset base and handset lifter installation

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