Operating instructions

ICX-35-700 ICX (International), issued March/1998 19
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 22
Attendant Groups 22
Automatic Call Distributor 23
Automatic Route Selection 24
Automatic Trunk to Trunk Transfer 24
Background Music/MOH Separation 25
Battery Backup 25
Building Block Expansion Capability 25
Built-In Voice Mail 26
Call Progress Tones 27
Caller ID 27
Caller ID Alpha Tagging (Not Available in USA) 28
Centrex/PBX Compatibility 28
Class of Service 29
Class of Service - Trunk/Tie 29
Class of Service - Ext/Ext Restriction 30
Class of Service - Extension Feature 30
Class of Service - Trunk to Trunk Restriction 32
Class of Service - Extension (Station) Timers 32
Computer Telephony Integration Capability (USA Only) 33
Data Security 33
Day/Night System Mode 33
Manual Day/Night Mode 34
Automatic Day/Night Mode 37
Digital Pad 37
Direct Inward System Access 38
Distinctive Ringing 39
Doorphone 39
Doorphone Sensor 40
Extension Interface 40
Digital Key Telephones 40
Analog Device Capability 41