Telephone operation
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 on a call, or out of range, the calling handset will show the message UNABLE TO CALL TRY AGAIN.
3.Pressing 
OFF/CLEAR or MUTE/REMOVE will temporarily silence the intercom ringer.
4.A maximum of two handsets can be used at once on the same intercom call. For model TL72408, four handsets can be used for two different intercom calls at once.
5.During an intercom call, there will be an alert tone
signaling an incoming call. Press 
PHONE/FLASH or INT to answer the incoming call. The intercom call will be ended automatically.
Intercom
Use the intercom feature for conversation between handsets. (This feature is not available on model TL72108.)
Models TL72208/TL72308/TL72408
1.Press INT. The screen will show INTERCOM TO:
2.Enter a handset number. The screen will show CALLING HANDSET X. The called handset will ring, and its screen will show HANDSET Y IS CALLING.
3.On the ringing handset, press 
PHONE/FLASH, INT, 
SPEAKER, or any dial pad key
To end the intercom call:
•Press 
OFF/CLEAR or INT on either handset.
•Place either handset in the charger or telephone base.
To make an intercom call while on a call:
If you are on an external call and you wish to intercom another system handset without disconnecting the external call:
1.During a conversation with an outside call, press INT. The outside call is automatically placed on hold and TRANSFER TO: is displayed on the screen.
2.Enter a handset number. The screen will show CALLING HANDSET X. The called handset will ring, and its screen will show HANDSET Y IS CALLING.
3.On the ringing handset, press 
PHONE/FLASH, INT, 
SPEAKER, or any dial pad key
4.Press INT repeatedly on the calling handset to alternate between the external (outside) call and the intercom call.
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