88
Adding and registering handsets
Your telephone can support up to 12 cordless handsets. A new handset 
(AT&T model CL80111, purchased separately) must be registered to the 
telephone base before use. You must register each handset separately. 
The handsets provided within your product box are already registered as 
HANDSET 1 and so forth. Additional handsets are assigned numbers in the 
sequential order they are registered (up to HANDSET 12). 
Register a handset to the telephone base
1. Make sure the handset is out of the telephone base or 
charger and shows Put HS on BASE to register before you 
begin registration.
2. Put the handset you wish to register on the telephone  
base cradle.
3. Both the handset and the telephone base show 
Registering... Please wait and the IN USE light on the 
telephone base turns on. Then HANDSET X Registered 
appears on both the handset and the telephone base 
screens ((HANDSET represents the handset name,  
X represents the handset number). Both the handset and 
the telephone base beep and the IN USE light turns off. 
The handset is now registered with the telephone base.
If registration fails, the system will automatically try 
to register again. If registration fails after the third try, 
Registration failed appears on both screens. Then the 
handset shows Put HS on BASE to register and the 
telephone base returns to idle mode. This may take up 
to 5 minutes to occur. Please start again from  
Step 1 above.
NOTES: 
You cannot register a handset if any other system handset is in use.
If you try to register more than 12 handsets to the telephone base,  
the telephone base shows Registration slots are full and  
sounds 2 beeps. 
•
•
 
 
 
Put HS on BASE 
to register
 
 
 
Registering...
Please wait
 
 
 
HANDSET X
Registered
Appendix 
For registration, put the 
handset on the telephone 
base, not the handset charger.