Aastra Dialog 4220 Lite User Manual page 18

Ericsson Dialog 4222
Authorisation Code (Optional)
If you are assigned an authorisation code (1 to 7 digits),
affiliated to your own ext you can change the access level
on your ext. You can use the code for one call or you can
open the phone to some calls and lock it when leaving
the phone.
To use for a single call:
Dial.
Enter authorisation code and press
Verification tone.
Dial 0 to get an external line, and then dial the
external number.
To open an ext for some calls:
Dial
Enter authorisation code and press.
Verification tone.
To lock an extension:
Dial
Enter authorisation code and press.
Verification tone.
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