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If you place the handset in the telephone base or charger without plugging in the
battery, the screen displays No battery.
•
Battery charging
Once you have installed the battery, the screen indicates the battery status (see
the table below). For best performance, keep the handset in the telephone base
when not in use. The battery is fully charged after 13 hours of continuous charging.
Battery indicators Battery status Action
The screen is blank, or
displays Place in charger
and ashes.
The battery has no or very
little charge. The handset
cannot be used.
Charge without interruption
(at least 30 minutes).
The screen displays
Low battery and ashes.
The battery has enough
charge to be used for a
short time.
Charge without interruption
(about 30 minutes).
The screen displays
HANDSET X.
The battery is charged. To keep the battery charged,
place it in the telephone base
or charger when not in use.
Add and register a handset
You can add new handsets (purchased separately) to your telephone system.
Each handset must be registered with the telephone base before use. Additional
handsets registered to the telephone system are assigned numbers in the
sequential order.
When rst purchased and properly charged, each expansion handset displays
Put handset on BASE to register. The new handset should be charged without
interruption for at least 30 minutes before registering it to the telephone base.
To register a handset:
Make sure the handset is out of the telephone base or handset charger and
shows Put handset on BASE to register. Place the handset you wish to
register in the telephone base.
1.
The handset displays Registering handset... then displays HANDSET X
Registered, and you hear a conrmation tone from the handset when
registration completes. It takes about 60 seconds to complete the
registration process.
2.
IS7121 base Do not place the handset
in the charger.
Deregister handsets and doorbells
If you want to replace a handset, or reassign the designated handset number of a
registered handset, you must deregister all system devices and then register each
handset/doorbell individually.
Make sure you plug in AC power for the doorbells before deregistration.
To deregister all handsets and doorbells:
Press and hold /FIND HANDSET on the telephone base for about 10 seconds
until the IN USE light ashes.
Immediately press /FIND HANDSET again. You must press
/FIND HANDSET while the IN USE light is still ashing. The IN USE light
ashes for about ve seconds.
All handsets show Put handset on BASE to register and all doorbell lights
ash quickly. The deregistration process takes about 10 seconds
to complete.
To register the handset(s) to the telephone base again, follow the registration
instructions above.
1.
2.
3.