AT&T CL81301 User Manual

Adding and registering handsets

Before using a new CL80101 handset, you must register it with the AT&T 
CL81101/CL81201/CL81301/CL82101/CL82201/CL82301/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 

Put HS on BASE to register. 

Register a handset to your telephone base 
1. Make sure the handset is out of the telephone 

base or charger and shows 

register before you begin registration.

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.  

If registration fails, 

Registration failed appears on the 

screen. Start again from Step 1 above. 

NOTES: 

You cannot register a handset if any other system handset is in use.
To reset the telephone, unplug the power and the battery for a few seconds then 
plug them back in.

•
•

Registration and deregistration

8

        

     

Put HS on BASE

to register

        

Registering...

Please wait

        

     

HANDSET X

Registered