List of Abbreviations
A
AA
Automated Attendant
ACD
Automatic Call Distribution
ANI
Automatic Number Identification
AOC
Advice of Charge
APT
Analogue Proprietary Telephone
ARS
Automatic Route Selection
B
BGM
Background Music
BRI
Basic Rate Interface
C
CA
Communication Assistant
CCBS
Completion of Calls to Busy Subscriber
CDPG
Call Distribution Port Group
CF
Call Forwarding—by ISDN
CLI
Calling Line Identification
CLIP
Calling Line Identification Presentation
CLIR
Calling Line Identification Restriction
CNIP
Calling Name Identification Presentation
CNIR
Calling Name Identification Restriction
COLP
Connected Line Identification Presentation
COLR
Connected Line Identification Restriction
CONP
Connected Name Identification Presentation
CONR
Connected Name Identification Restriction
COS
Class of Service
CPC
Calling Party Control
CS
Cell Station
CT
Call Transfer—by ISDN
CTI
Computer Telephony Integration
D
DDI
Direct Dialling In
DHCP
Dynamic Host Configuration Protocol
DID
Direct Inward Dialling
DIL
Direct In Line
DISA
Direct Inward System Access
DND
Do Not Disturb
DPT
Digital Proprietary Telephone
DSS
Direct Station Selection
DTMF
Dual Tone Multi-Frequency
E
EFA
External Feature Access
Feature Guide 5
List of Abbreviations
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