Technical information

Small Business Communications Systems
5-38 Issue 7 June 2001
 Outside lines can be assigned to Night Service groups in order for calls
received on these lines to receive Night Service treatment. The System
Manager can assign the following types of outside lines to Night Service
groups:
— Loop-start lines
— Ground-start lines
— NI-BRI B-channels
— PRI B-channels that are routed by line appearance
— Automatic incoming tie trunks
 The following types of outside lines cannot be assigned to Night Service
groups:
— DID (Direct Inward Dial) trunks
— Dial-in tie trunks
— PRI B-channels that are routed by dial plan
— Line/trunk jacks programmed for Alarm, Music-On-Hold, or
Paging
— Unequipped line/trunk jacks
 Night Service group members and operators must all be local system
users. Private trunks should not be assigned to Night Service groups.
During Night Service operation, calls received on lines assigned to a Night
Service group ring at the Night Service destination for the group (an extension or
Calling Group). A line need not be assigned to an operator position in order to
receive Night Service coverage to a Calling Group.
Lines that are not assigned to a Night Service group, whether or not they appear
at operator consoles, do not receive Night Service treatment.
**** SECURITY ALERT ****
If night service is used to activate remote administration you should not use a line
with a published telephone number. Professional toll fraud criminals scan
telephone directories for published local and 800 telephone numbers. Using these
numbers, they attempt to gain access to the system, then may use such features
as Remote Access to reach outside facilities from within the system.