Adding and registering handsets
Before using a new CL80101 handset, you must register it with the 
AT&T CL81101/CL81201/CL81211/CL81301/CL82101/CL82201/
CL82251/CL82301/CL82311/CL82351/CL82401/CL82451/
CL82501/CL82551/CL82601 telephone system (purchased 
separately). The telephone system can support up to 12 handsets.
The handsets provided with your telephone system are already 
registered as HANDSET 1, and so forth. Additional handsets 
registered to the telephone system are assigned in sequential 
order they are registered (up to HANDSET 12). 
You must register each handset separately. When first purchased, all 
expansion handsets show To register, see manual. 
Register a handset to your telephone base 
1. 
Before you begin registration, make sure the 
handset is out of the telephone base or charger 
and shows To register, see manual.
2. Put the handset you wish to register on the 
telephone base cradle.
3. 
The screen shows Registering... Please wait 
and the IN USE light turns on. It takes up to 90 
seconds to complete registration. Then,  
HANDSET X Registered appears on the screen, 
with HANDSET being the handset name and X 
being the handset number (1-12). The handset 
beeps and the IN USE light turns off. The handset 
is now registered with the telephone base. 
Registration and deregistration
8
 
 
 
To register,
see manual.
 
 
Registering...
Please wait
 
 
 
HANDSET X
Registered
For registration, put the 
handset on the telephone 
base, not the handset 
charger.