Ericsson DIALOG 4422 - Manual (Page 40)

Outgoing Calls
Dialog 4422 IP Office 40
Cancel any single Callback #37* z #
Dial, enter the extension number and press.
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. í
Press.
Cancel all Callbacks #37#
Dial.
í
Press.
Activate Call Waiting
If you urgently wish to contact a busy extension or external line, you
can notify by a Call Waiting signal. 5
Press.
Note: France and Finland, press
6
; Sweden, press
4
Keep handset off hook. When the called extension or the external
line becomes free, it will be called automatically.
Note: The Call Waiting feature might be blocked for use on
your extension (programmed by your system
administrator). If Call Waiting is not allowed, you will
continue to receive a busy tone.