576-50-700 DBS 576 (USA) issued September 2001 3-1
Chapter 3. System Features
System Features are either available on a system-wide basis or aid in the overall administration of the
System.
This chapter contains detailed descriptions of the following System Features:
Topic Page
AEC Disconnect 3-4
Attendant Groups 3-4
Automatic Call Distributor 3-5
Automatic Route Selection 3-6
Automatic Trunk to Trunk Transfer 3-7
Background Music/MOH Separation 3-7
Battery Backup 3-8
Building Block Expansion Capability 3-8
Built-In Voice Mail Unit 3-9
Call Progress Tones 3-10
Caller ID 3-10
Caller ID Alpha Tagging 3-11
Centrex/PBX Compatibility 3-12
Class of Service 3-12
Class of Service - Trunk/Tie 3-12
Class of Service - Ext/Ext Restriction 3-13
Class of Service - Extension Feature 3-13
Class of Service - T1 Trunk Ring Back Service Tone 3-16
Class of Service - Trunk to Trunk Restriction 3-16
Class of Service - Extension (Station) Timers 3-16
CO Ringing Types 3-17
DID Ringing 3-17
DIL Ringing 3-18
DIL Delayed Incoming Ring Enhancement 3-19
DISA Ringing 3-20
Multiple Ringing 3-20
CO Trunk Interface 3-20
CO Trunk Interface - DID 3-21
CO Trunk Interface - Ground Start 3-21
CO Trunk Interface - ISDN BRI 3-21
CO Trunk Interface - ISDN-PRI 3-22
CO Trunk Interface - Loop Start 3-22
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