Ericsson 4220 用户手册
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Dialog 4220 Lite/Dialog 4222 Office
Outgoing Calls
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.
Notes:
You can also press: Call Waiting (function key
preprogrammed by you).
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 function 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.
Notes:
You can also press: Intrusion (function key preprogrammed
by you).
France and Sweden, Press
8
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.
Note: The warning tone might be disabled for your system.
The Intrusion function 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.