Ericsson 4187 Plus - Manual (Page 32)

Outgoing Calls
Dialog 4187 Plus 32
Authorization code, common
If you are authorized to use a common authorization code (1 to 7
digits) you can temporarily change any phone used within the
telephone system to the authority level connected to this code. You
can use the code for one call only or you can open the phone to
some calls and lock it when leaving the phone.
To use for a single call: u
Lift the handset. *72*
Dial.
z #
Enter authorization code and press.
Verification tone. z
Dial the digit or digits to get an external line and the external
number.
To open an extension for several calls: u
Lift the handset. #73*
Dial.
z #
Enter authorization code and press.
Verification tone.
To lock an extension: u
Lift the handset. *73*
Dial.
z #
Enter authorization code and press.
Verification tone.