List of Abbreviations

A

AA
Automated Attendant
ACD
Automatic Call Distribution
ANI
Automatic Number Identification
APT
Analog Proprietary Telephone
ARS
Automatic Route Selection

B

BGM
Background Music

C

CCBS
Completion of Calls to Busy Subscriber
CF
Call Forwarding—QSIG
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—QSIG
CTI
Computer Telephony Integration

D

DID
Direct Inward Dialing
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

F

FWD
Call Forwarding

G

G-CO
Group-CO

I

ICD
Incoming Call Distribution
6 Feature Manual Document Version 2008-11
List of Abbreviations