AASTRA 4422 IP Office (SIP) for MX-ONE User Guide - Manual (Page 38)

Outgoing Calls
Dialog 4422 IP Office 38
Press.
Cancel all Callbacks #37#
Dial.
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
or Ô
Call Pickup press.
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.
Intrusion on a busy extension
You can intrude on an ongoing call on a busy extension. 4
Press.
Before the intrusion is executed, a warning tone is sent to the
parties in the ongoing call. A three party call is established and a
warning tone is heard.
Notes:
France and Sweden, press
8
The warning tone might be disabled for your system. The
Intrusion feature might be blocked for use on your extension
(programmed by your system administrator). If Intrusion is
not allowed, you will continue to receive a busy tone.