Instruction manual

CHAPTER 10. ABBREVIATIONS AND ACRONYMS
CMDR
CMS
CO
COR
COS
CP
CPE
CPTR
CRC
CSA
CSM
DC
DCE
DCP
DCS
DDC
DDD
DID
DLC
DLDM
DMI
DND
DNIS
DOD
DOSS
DS1
DSU
DTDM
DTE
DTGS
DTMF
DXS
E&M
EBCDIC
EI
EIA
EMI
EPN
EPROM
EPSCS
ESF
ETN
FAC
FAS
FCC
FIC
FNPA
Centralized Message Detail Recorder
Call Management System
Central Office
Class of Restriction
Class of Service
Circuit Pack
Customer-Provided Equipment
Call Progress Tone Receiver
Cyclical Redundancy Checking
Canadian Safety Association
Centralized System Management
Direct Current
Data Communications Equipment
Digital Communications Protocol
Distributed Communications System
Direct Department Calling
Direct Distance Dialed
Direct Inward Dialed
Data Line Circuit
Data Line Data Module
Digital Multiplexed Interface
Do Not Disturb
Dialed Number Identification Service
Direct Outward Dialed
Delivery Operations Support System
Data Services Level 1
Data Service Unit
Digital Terminal Data Module
Data Terminal Equipment
Direct Trunk Group Select
Dual Tone Multifrequency
Direct Extension Selection
Ear and Mouth (Receive and Transmit)
Extended Binary Coded Decimal Interexchange Code
Expansion Interface
Electronic Industries Associaton
Electro-Magnetic Interference
Expansion Port Network
Erasable Programmable Read Only Memory
Enhanced Private Switched Communications Services
Extended Superframe Format
Electronic Tandem Network
Feature Access Code
Facility Associated Signaling
Federal Communications Commission
Facility Interface Codes
Foreign Numbering Plan Area
10-2