Feature Guide 7
List of Abbreviations
A
AA → Automated Attendant
ACD → Automatic Call Distribution
AOC → Advice of Charge
APT → Analogue Proprietary Telephone
ARS → Automatic Route Selection
B
BGM → Background Music
BRI → Basic Rate Interface
C
CCBS → Completion of Calls to Busy Subscriber
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
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
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