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8. Additional devices
Deregister handsets
If you want to replace a cordless handset, you must deregister all the handsets, and then
individually register each handset to the telephone base.
• You hear a confirmation tone when the deregistration process completes. It takes about 10
seconds to complete the deregistration.
1
When the telephone is not in use, press and hold
PAGE on the telephone base for about five seconds
until the visual ringer indicator light turns on.
Keep holding PAGE until the visual ringer indicator
light begins to flash. Release PAGE.
2
Immediately press PAGE
again while the light is still
flashing.