8.4.18 Locking and unlocking a Phone
Terminals are locked to prevent misuse or to force the allocation of call charges
on a user-pays basis.
Terminals on the system can be locked and unlocked in two different ways:
• Locking / unlocking the terminal (phone lock):
The user can lock his terminal during his absence or restrict the dialling possi-
bilities. He then uses a password to unlock the terminal.
• Unlocking the terminal for each call:
Locking a terminal or restricting its dialling possibilities is activated in the system
configuration.
With his password a user can lift the restriction and make one outgoing call.
The telephone is locked again automatically after the call. Permanent unlocking
by the user as is the case with the phone lock is not possible.
Internal and external digit barring is used for locking / restricting dialling. This
means the user is free to define what is restricted and by how much.
A terminal can be set up for one of these variants.
The password for both variants is the same.
All terminal types can be locked; on system terminals with display the function is
menu-supported.
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