AASTRA 4422 IP Office (SIP) for MX-ONE User Guide - Manual (Page 36)

Outgoing Calls
Dialog 4422 IP Office 36
Notes:
This feature is only available in newer versions of the
telephone system, and it might be blocked for use on your
extension (programmed by your system administrator).
The Number Presentation Restriction is only valid for the
ongoing call, that is the procedure has to be repeated the
next time you want to use it. u
Lift the handset. *42#
Dial and wait for a new dial tone.
z
Dial the number.
Press.
Instead of your name and number, the display on the called phone
shows
Anonymous .
When you receive a busy tone
If you call an extension and receive a busy tone, or get no answer,
or all external lines are busy, you can use any of the following
methods:
Callback
If a called extension is busy or there is no answer: 6
Press.
It can take several seconds before the procedure is executed.
A confirmation tone is heard.
Note: France, Finland and Sweden, press
5
or Ô
Callback press.
d
Replace the handset to finish the procedure.