Telephone base operation
Intercom
46
You can use the intercom feature for conversations between the telephone 
base and an accessory cordless handset or registered cordless headset, or 
between two accessory cordless handsets (one of which can be a registered 
cordless headset). When the system is making one or more external calls, the 
cordless handsets can make intercom calls with each other.
You can register up to 10 extensions to the telephone base. The extensions 
are cordless handsets. You can substitute a cordless headset for one of the 
handsets. The extensions are assigned sequential numbers (1-0) as they are 
added. If you register a cordless headset, it is always assigned extension 
number 0. See pages 10-11 for information on adding and registering cordless 
handsets and cordless headsets.
NOTE: A telephone base connected to AC power but not to any telephone lines can still 
intercom with charged and registered accessory cordless handsets. 
Make an intercom call to a cordless handset 
Press the one-touch EXT 1-0 key for the destination 
extension or press the INT/PTT ALL key, then lift the 
handset. The screen displays Calling X:Handset X (X 
represents the extension number [1-0], Handset X 
represents the default handset name) or Calling All.
-OR-
Press INT key on the telephone base, then scroll to the 
destination extension handset. Press MENU/ENTER. 
NOTES: 
Before the intercom call is answered, you can cancel the intercom by pressing   SPEAKER, lifting 
and resetting the handset, or by pressing the corresponding LINE 1-LINE 4 to resume a call. 
The intercom call automatically cancels if the call is unanswered after one minute. 
Press MUTE to temporarily silence the intercom ringer.
When you choose All in the menu, all the extensions and the telephone base ring. The intercom 
call is established with the first extension to answer the call. 
If a line is in use, pressing INT places the line on hold and activates the intercom. 
1.
2.
3.
4.
5.
Handset 1
Handset 2
Handset 3
>
Intercom to:
INT
Calling
1:Handset 1