User`s manual

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

The handset displays Registering handset... then displays HANDSET X

Registered, and you hear a conrmation tone from the handset when

registration completes. It takes about 60 seconds to complete the

registration process.

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.