DMCLDigital Modem Command Language
QTAMQueued Telecommunications Access Method
DIXDEC - Intel - Xerox (connector)
MVMillivolt (usually as mV)
ARISAudichron Recorded Information System
COCOTCustomer Owned Coin Operated Telephone
NCSNational Communications System / Network Computing System / Network Control System
ACTSAutomated Coin Toll Service / Automatic Coin Telephone System
RDESRemote Data Entry System
PLPPacket Layer Protocol/Procedure / Packet Level Procedure
WEPNWorldwide Electronic Publishing Network
CDRCall Detail Recording / Call Dial Routing
DDAPDigital Distribution of Advertising for Publications
TXSTelephone eXchange Strowger