AASTRA DT4x2 for MX-ONE User Guide EN - Manual (Page 47)

47 DT412/DT422/DT432
Outgoing Calls
Authority
Authorization Code, common
If you are assigned to use a common Authorization Code (1 to 7
digits) you can temporarily change any used phone within the
exchange to the authority level connected to this code. You can
use the code for one call only or you can open the phone for some
calls and lock it when leaving the phone.
To use for a single call: *72*
Dial. е # ж
Enter Authorization Code and press.
Verification tone. å
Dial the digit or digits to get an external line and the external
number.
To open an extension for some calls: #73*
Dial. е # ж
Enter Authorization Code and press.
Verification tone. æ
Press to finish the procedure.
To lock an extension *73*
Dial. е # ж
Enter Authorization Code and press.
Verification tone. æ
Press to finish the procedure.