AASTRA 4222 Office for BusinessPhone User Guide EN - Manual (Page 26)

Outgoing Calls
BusinessPhone – Dialog 4222 Office / Dialog 3211 & 3212 26
Busy extension
You call an extension and receive busy tone.
Camp-on
You can notify a busy extension of your call by a muted ringing call. 4
Press to camp-on.
Keep the handset off hook. When the called extension replaces the
handset, it will be called automatically.
Notes: If you receive the busy tone again, the desired
extension does not allow Camp-on.
The number for Camp-on may differ from country to
country , see table “Alternative programming for Automatic
Callback, Camp-on, Intrusion” on page 92 .
Intrusion
You can intrude on an ongoing call on a busy extension (if this
function is allowed). 8
Press to intrude.
Intrusion tone is heard and a three-party call is established. When
the called extension replaces the handset and you keep off hook,
the called extension will be recalled automatically.
Notes: If you still hear the busy tone, your extension does
not have the authority to intrude or the desired extension is
protected against Intrusion.
The number for Intrusion may differ from country to country ,
see table “Alternative programming for Automatic Callback,
Camp-on, Intrusion” on page 92 .