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240 / Using System features
Compact ICS 6.1 System Coordinator Guide P0603544 02
Using Class of Service (COS) passwords
Class of Service passwords permit controlled access to system resources
both by internal and remote users. When you enter a Class of Service
password at a telephone, the restriction filters associated with your Class of
Service password apply, rather than the normal restriction filters.
Similarly, when a remote user enters a Class of Service password on an
incoming auto-answer line, the restriction filters and remote package
associated with their Class of Service password apply, rather than the
normal restriction filters and remote package. COS passwords are
programmed by either your customer service representative or installer.
Users should memorize their COS passwords instead of writing them
down. Employee COS passwords should be deleted when they leave the
company. Typically, each user has a separate password. Several users can
share a password or one user can have several passwords.
Changing your Class of Service
You must enter a Class of Service password each time you want to make a
call that is normally restricted on a line or telephone.
To change the restriction filters on a line or telephone:
1. Press
.
2. Enter your six-digit COS password.
Fast busy tone You have done one of the following
• Entered an incorrect COS password. Your call
is disconnected after five seconds.
• Taken too long while entering a COS
password. Your call is disconnected after five
seconds.
• Tried to use a line pool or feature not permitted
by your Class of Service. You hear system dial
tone again after five seconds.
• Dialed a number in the Norstar system which
does not exist. Your call is disconnected after
five seconds.