Multiple handset use
25
Intercom
Use the intercom feature for conversations between handsets. This feature is 
not available for model CL82109 unless you have purchased additional 
handsets (CL80109).
You can buy additional expansion handsets (model AT&T CL80109) for this 
telephone base. You can register up to 12 handsets to the telephone base. 
The first nine handsets that you register are named Handsets 1-9. Use the 
handset number to initiate intercom and transfer calls.
Although the names for handsets 10-12 appears in their displays as 10-12, 
when you intercom or transfer to one of them, you must use *0 for Handset 
10, *1 for handset 11, and *2 for Handset 12.
1. Press INT on your handset when not in use. 
• If you have a two-handset system, your handset 
screen shows CALLING OTHER HANDSET. 
• If you have more than two handsets, your screen 
shows INTERCOM TO: Use the dialing keys to 
select the other handset. Your handset screen 
shows CALLING HANDSET X. 
The other handset rings and its screen shows either OTHER 
HANDSET IS CALLING or HANDSET X IS CALLING.
2. To answer the intercom call, press  PHONE/FLASH, 
INT, or any dial pad keys (0-9, #, *) on the other handset. 
Both handsets now show INTERCOM. 
3. To end an intercom call, press INT,       OFF/
CLEAR, or 
place the handset back in the telephone base or charger.
NOTES:
1.  Before the intercom call is answered, you can cancel the intercom call by pressing 
     OFF/CLEAR or INT on the calling handset. 
2.  If the called handset is not answered within 100 seconds, or if it is in the directory 
or call log mode, or is out of range, the calling handset shows the message 
UNABLE TO CALL TRY AGAIN. 
3.  Pressing      OFF/
CLEAR or MUTE/DELETE temporarily silences the intercom ringer. 
4.  You can use a maximum of four handsets at a time. When you use two handsets on 
an intercom call, others can use two other system handsets for an outside call.
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