___  __                __
                         / _ \/ /  _______ ___ _/ /_____
                        / ___/ _ \/ __/ -_) _ `/  '_(_-<
                       /_/  /_//_/_/  \__/\_,_/_/\_Y___/
                                ___ ____ ___/ /
                               / _ `/ _ Y _  /
                              _\_,_/_//_|_,_/
                             / ___/__ ___ / /_____
                            / (_ / -_) -_)  '_(_-<
                            \___/\__/\__/_/\_Y___/


                     *** Telecom-related abbreviations ***

                               By: Captain B



PSTN- Public Switched Telephone Network

POTS- Plain Old Telephone Service

SS7- Signalling System 7

ESS- Electronic Switching System

TNI- Telephone Network Interface

ESN- Electronic Serial Number

WATS- Wide Area Telephone Service

DATU- Direct Access Test Unit

REN- Ringer Equivilence Number

PBX- Private Branch eXchange

PABX- Private Automatic Branch eXchange

ACTS- Automatic Coin Toll System

CO- Central Office

ANI- Automatic Number Identification

CID- Caller ID

DTMF- Dual Tone Multi-Frequency

MF- Multi-Frequency

COCOT- Customer Owned Coin Operated Telephone

ANAC- Automatic Number Announcement Circuit

VMS- Voice Mail System

VMB- Voice Mail box

ILEC- Incumbent Local Exchange Carrier

CLEC- Competing Local Exchange Carrier

ISDN- Integrated Services Digital Network

DSL- Digital Subscriber Line

ADSL- Asymmetrical Digital Subscriber Line

KP- Key Pulse

ST- Start Transfer

CPE- Customer Premise Equipment

HAC- Home Area Code

SAI- Service Area Interface