Ericsson DT59C - Manual (Page 43)

43 DT590
Outgoing Calls
To make calls with your authority level when your phone is locked: *75*
Dial.
¿ # Ь Ы
Enter Authorization Code and press.
Verification tone. ¿
Dial the digit or digits to get an external line and the external
number.
To open your phone: #76*
Dial.
¿ # Ь Ы
Enter Authorization Code and press.
Verification tone. Ъ Щ
Press to finish the procedure.
To assign your own authority level to another phone: *75*
Dial.
¿ *
Enter Authorization Code and press.
¿ # Ь Ы
Dial your own extension number and press.
Verification tone. ¿
Dial the digit or digits to get an external line and the external
number.
To change your individual Authorization Code: *74*
Dial.
¿ *
Enter old Authorization Code and press.
¿ # Ь Ы
Dial new Authorization Code and press.
Verification tone. Ъ Щ
Press to finish the procedure.