AASTRA 4223 Professional for BusinessPhone User Guide - Manual (Page 104)

Settings
BusinessPhone — Dialog 4223 Professional / Dialog 3213 104
Alternative programming for Automatic
Callback, Camp-on, Intrusion
The associated number for using the Automatic Callback, Camp-
on or the Intrusion function may vary from country to country. If you
cannot use a code of a function, maybe your exchange system has
been programmed with a different associated number.
Because this User Guide describes only the default programming,
the following table shows the most common settings in some of
these countries that are known for a different programming.
Austria, Belgium,
Brazil, Denmark,
Germany
Camp-on 5
Automatic Callback 6
Answer calls, to another extension
(Call pick-up)
8
Intrusion 4