Aastra Dialog 4220 Lite User Manual page 24

Outgoing Calls
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If all external lines are busy (after dialing the digit or digits to get a
6
line):
Press.
Notes:
You can also press: Callback (The function key is
programmed by you).
France, Finland and Sweden, Press
Dial the external number and press.
Replace the handset to finish the procedure.
When an external line becomes free you will be called back (recall
ring signal). You have to answer within eight seconds, otherwise
the Callback service is cancelled. While waiting for the Callback,
you can make and receive calls as usual.
Lift the handset when you are called back.
The system calls the external number.
Note: Only one Callback can be activated on a busy
external line. Callbacks from additional lines will recall on
Line 1.
Cancel any single Callback
Dial and enter the extension number.
Note: To cancel a single Callback on a specific external
line, dial the digit or digits to get a line instead of the
extension number.
Press.
Cancel all Callbacks
Dial.
Press.
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