Deregistering Handsets - AT&T EL52103 Quick Start Manual

Deregistering handsets

If you want to replace a handset, or reassign the designated handset number of
a registered handset, you must deregister all handsets that are registered to the
telephone base, and then register each handset individually.
To make deregistration easier, read all of the instructions below before you begin.
Deregister all handsets from the telephone base:
1. Press and hold
until the In usE light on the telephone base turns on and starts to flash.
2. Immediately press
/hanDsET LoCaTor while the In usE light is still flashing. The In usE light
flashes for approximately five seconds.
3. The deregistration takes about 10 seconds to complete. All handsets display
To register hs... and ...see manual alternately if the deregistration was successful.
To register the handset(s) to the telephone base again, follow the registration
instructions on the previous page.
notes:
• If the deregistration fails, you may need to reset the system and try again. To reset, unplug the
power from the telephone base and plug it back in.
• You cannot deregister the handsets if any other system handset is in use.
• Even if the battery is depleted, you can still deregister the handsets by following the steps
above. After the handset is charged for at least ten minutes, the screen shows To register hs...
and ...see manual alternately.
/hanDsET LoCaTor on the telephone base for about 10 seconds
/hanDsET LoCaTor again. You must press
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