--> Telco Acronyms ]----------------------------[ by downtime ]-------------- --> Part I: A - E ]---------------------------------------------------------- ^Darkcyde Communications^ ar.............................................Archive AC.............................................Administrative Computer AC.............................................Alternating Current ACA............................................Automatic Circuit Assurance AC/DC..........................................Alternating Current/Direct Current ACD/MIS........................................Automatic Call Distributor/Management Information System ACT............................................Agent Communication Terminal ADE............................................Application Developement Environment ADEF...........................................Automated Data Elements Form AEMIS..........................................Automatic Call Distrubition ESS Management Information System AEX............................................Action Executor AG.............................................Application Generator AMA............................................Automatic Message Accounting ANI............................................Automatic Number Identification ANS............................................Access Networking System ANSI...........................................American National Standards Institute ANS/XFE........................................Access Networking System/Cross Front End AP.............................................Application Process APD............................................Access Point Data API............................................Attached Processor Interface APS............................................Attached Processor System ARG............................................Alarm Reference Guide ARM............................................Access Resource Manager ARS............................................Automatic Route Selection ARU............................................Audio Response Unit ASMDR..........................................Advanced Station Message Detail Reporting ASP............................................Advanced Services Platform AT-D...........................................Auto Test-Digital ATU............................................Automatic Test Unit BASE...........................................Basic Application Services Environment BCM............................................Bit Compression Multiplexer BISYNC.........................................Binary Synchronous Communications BNS............................................Billed Number Screening BOC............................................Bell Operating Company BRI............................................Basic Rate Interface BRCS...........................................Business and Residence Customer Service BRITE..........................................Basic Rate Interface Transmission Extension BST-LSDB.......................................Basic Services Terminal-Directory Assistance System BVA............................................Billing Validation Application BWM............................................Broadcast Warning Message CARTS..........................................Circuit Assignment Record Transfer System CAS............................................Craft Access System CAT............................................Craft Access Terminal CBT............................................Computer Based Training CCM............................................Controller Circuit Module CCS............................................Common Communication Subsystem CCU............................................Central Control Unit CDB............................................Common Database CDMA...........................................Code Division Multiplex Accessing CE.............................................Control Equipment CDPD...........................................Cellular Digital Packet Data CEF............................................Capacity Expansion Frame CEPT...........................................Conference of European Postal and Telecommunications Administrations CFAS...........................................Computerized Frame Administration System CGA............................................Carrier Group Alarms CIU............................................Craft Interface Unit CMPS...........................................Candela Message Printer System CMS............................................Circuit Maintenance System CMSS...........................................Customer Message Service System CMU............................................Compact Measurement Unit CNI............................................Common Network Interface COACH..........................................Customer On-Line Aids for Customer Help COER...........................................Central Office Equipment Report CO-LAN.........................................Central Office Local Area Network CORC...........................................Customer Originated Recent Change COT............................................Central Office Terminal COXFS..........................................Central Office Cross-Connect Frame System CP.............................................Communications Processor CPDL...........................................Call Processing Data Links CPE............................................Customer Premise Equipment CPS............................................Customer Premise System CSA............................................Customer Servant Attendant CST............................................Combined Services Terminal CSU............................................Channel Service Unit CTM............................................Controller Transport Module C-VDM..........................................Central Voice/Data Multiplexer D5S............................................D5 Small DA.............................................Directory Assistance DACS...........................................Digital Access and Cross-Connect System DA/LS..........................................Directory Assistance/Listing Services DAC/S..........................................Directory Assistance Computer/System DCN............................................Data Communications Network DCRS...........................................Data Collections and Reporting Subsystem DCS............................................Digital Cellular Switch DDB............................................Digital Data Bank DDCMP..........................................Digital Data Communications Message Protocol DDI............................................Directory Database Information DDM............................................Dual DS-3 Multiplexer DDS............................................Digital Data Services DEC............................................Digital Equipment Corporation DFA............................................Digital Facility Access DFC............................................Disk File Controller DGI............................................Decision Graph Interface DII............................................Direct Intelligent Interface DKAP...........................................Datakit Application Processor DLTA...........................................Dual Lightwave Terminating Assembly DLTU H&R.......................................Digital Line Trunk Unit Host and Remote DQA............................................Dual Quadrant Assembly DSL............................................Digital Subscriber Line DSU2...........................................Digital Service Unit, Module 2 DTE............................................Data Terminal Equipment DTS............................................Digital Terminal System EADAS..........................................Engineering and Administrative Data Acquisition System ECD............................................Equipment Configuration Database ECL............................................Event and Control Link ECP............................................Executive Cellular Processor ECS............................................Evolutionary Control System EDS............................................Electronic Directory Service EFS............................................Extended File System EIS............................................External Information System EMC............................................Electromagnetic Compatability EMI............................................Electromagnetic Interference EMS............................................Element Management System ESAC...........................................Electronic Switching Assistance Center ESD............................................Electrostatic Discharge ESF............................................Extended Super Frame ESN............................................Emergency Serial Number Electronic Serial Number part 2: F - R Coming SOON! -downtime