3com SuperStack 3 NBX Manual De Usuario

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) 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.

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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.