Getting started
Adding and registering handsets (optional)
NOT REGISTERED
PRESS HNDST LOC 4 SEC ON BASE
PLEASE WAIT...
HANDSET X
REGISTERED
Handsets purchased separately (AT&T TL90078) need to be registered to the telephone base before use. When first purchased, all expansion handsets will show NOT REGISTERED on the screen. The new handset(s) may need to be charged for five minutes before registering to the telephone base.
To register a handset to your telephone base
1.Place the unregistered handset into the telephone base. If PRESS HNDST LOC 4 SEC ON BASE does not appear on the handset screen after a few seconds, remove the handset and place it in the telephone base again.
2.On the telephone base, press and hold
HANDSET LOCATOR for about four seconds (until the red IN USE light on the telephone base turns on) and then release the button. The handset will show PLEASE WAIT... and it will take about 10 seconds to complete the registration. The handset will display HANDSET X REGISTERED, with X being the handset number
NOTES:
1.If the registration is not successful, the display will show NOT REGISTERED. To reset the handset, remove the handset from the telephone base and place it back in. Try the registration process again.
2.You cannot register a handset if any other system handset is in use.
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