Aastra Dialog 4220 Lite

Outgoing Calls
Dialog 4220 Lite/Dialog 4222 Office32
To assign your own authority level to another phone:
*75* Dial.
z* Enter Authorization Code and press.
Verification tone.
z# Dial your own extension number and press.
Verification tone.
z Dial the digit or digits to get an external line and the external
number.
To change your individual Authorization Code:
*74* Dial.
z* Enter old Authorization Code and press.
z# Enter new Authorization Code and press.
Verification tone.