AT&T TL7800 User Manual download pdf (Page 19)

Getting started

Deregistering headset

You may need to deregister your headsets if:

You have already registered the headset and now wish to register

your headset to a different headset base or telephone base.

-OR-

You have registered the maximum number of headsets and

need to replace one of them. You must first deregister allYou must first deregister all

headsets, and then register each headset you wish to use

again, one at a time.

Please read carefully through all the instructions on this page

before beginning the deregistration process.

Deregister all headsets from the TL7810/TL7812 headset basethe TL7810/TL7812 headset base

Press and hold the PAIR button on the headset

base (at least 10 seconds) until the MUTE light

on the headset base turns on and starts to

flash, then release the PAIR button.

Immediately press and release the PAIR

button again. You must press the PAIR button

while the MUTE light is still flashing. (The light

flashes for about seven seconds. If the light stops flashing,

start again with Step 1 above.)

It takes about 10 seconds to complete the deregistration

process. The light flashes slowly in red and blue when the

deregistration process is successful.

3. To register the headset(s) to the headset base again, follow the

registration instructions on page 9.

NOTES:

You cannot deregister the headset(s) if any system headset is in use.

Even if the battery is depleted, you can still deregister the headset by

following the steps above.

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AT&T TL7800 User Manual Page 19