Nortel Networks 6.1 manual Using Class of Service COS passwords, Changing your Class of Service

240 / Using System features

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.

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 makefl°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.
Compact ICS 6.1 System Coordinator￿fl°Guide		P0603544 02