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Class of Service (CoS) 273
Call Coverage For each type of hunt group, use this set of check boxes to define where
the NBX system routes an unanswered call (the call coverage point):
■ Voice Mail — An unanswered call goes to the hunt group extension’s
voice mailbox.
■ Auto Attendant — An unanswered call goes to the Automated
Attendant that you specify.
■ Phone Number — An unanswered call goes to the extension that
you specify, such as the receptionist, or another hunt group.
Class of Service
(CoS)
Class of Service (CoS) is a set of calling permissions that you assign to
users. Most permissions are subject to the Business Hours parameters:
Open, Lunch, and Other. For example, you can create a class that allows
toll calls during normal business hours, but denies them at other times.
Additional considerations:
■ Emergency calls (such as calls to 911) are not subject to CoS
restrictions.
■ System-wide Speed Dial numbers are not subject to Class of Service
restrictions. For example, if you want to enable calling to a specific toll
number to all users without regard to their CoS settings, create a
System Speed Dial for that number.
■ When you create a new profile, the system assigns the default CoS
unless you specify a different one. If you edit the properties of the
default CoS, verify that it contains a minimum set of permissions.
■ You can enable or disable Offsite Notification at the system level. The
system-wide setting takes precedence over the CoS setting.
Service classes control these types of calls:
■ Intercom
■ External (local, long distance, international, long distance toll-free,
and long distance toll)
■ CO Code (optional telephone company services, such as Call Waiting)
■ Trunk to trunk transfers
■ Off-site Notification
To configure Class of Service, select User Configuration > CoS and then
see the Help screens for these buttons: Add, Modify, Remove, and View.