\\ More than 3500 Telecom abbreviations maintained by Ioan (Nini) Indreias // 1 A B C D E F G H I J K L M N O P Q R S T U V W X Y All words E&M Ear and Mouth EA Address field Extension (HDLC) EA Equal Access EA Extended Address EAD Expedited Application Docket EADAS Engineering and Administration Data Acquisition System EADASNM EADAS Network Administration EAEO Equal Access End Office EAI Enterprise Application Integration EAMF Equal Access Multifrequency EAOSS Exchange Access Operator Service Signaling EAP Extensible Authentication Protocol EARN European Academic Research Network EARS Easy Access Request System EAS Equal Access Signaling EAS Extended Area Service EBAT Electronic Bill Analysis Tool EBCDIC Extended Binary Coded Decimal Information/Interchange Code EBS Electronic Business Sets EBU European Broadcasting Union EC Echo Canceling EC Electrical Carrier EC European Community ECC Error Checking/Correction Code ECDSA Elliptic Curve Digital Signature Algorithm ECM Error Correction Mode ECMA European Computer Manufacturer Association ECN Electronic Communication Network ECN Explicit Congestion Notification (FR) ECSA Exchange Carriers Standards Association ECTF Enterprise Computer Telephony Forum ED Ending Delimiter (LAN) EDFA Erbium-Doped Fiber Amplifier EDGE Enhanced Data rate for GSM Evolution EDGE Enhanced Data rate(s) for GSM Evolution EDI Electronic Data Interchange (ANSI) EDI Electronic Data Interexchange EDIFACT EDI for Administration, Commerce, and Transportation EDIFACT Electronic Data Interchange For Administration, Commerce, and Trade (ANSI) EDO Extended Data Out EDP Electronic Data Processing EDP Event Detection Point EDSX Electronic Digital Signal Cross-Connect EECM End-to-End Call Manager EEO Equal Employment Opportunities EEO Extremely Elliptical Orbit EEPROM Electrically Erasable Programmable Read-Only Memory EF Entrace Facility EFCI Explicit Forward Congestion Indicator (ATM) EFD Event Forwarding Discriminator EFM Eight-Fourteen Modulation EFR Enhanced Full Rate EFS End-of-Frame Sequence (LAN) EFS Error Free Second(s) EFS Error Free Seconds EFT Electronic Funds Transfer EGA Enhanced Graphics Adaptor EGP Exterior Gateway Protocol EGP Exterior Gateway Protocol (IETF) EGSM Extended (frequency range) GSM EHF Extremely High Frequency EHP Electron-Hole Pairs EHSA Enhanced High System Availability EI Expansion Interface EIA Electronics Industry Association EIDE Enhanced Integrated Device Electronics EIGRP Enhanced Interior Gateway Routing Protocol (Cisco) EIM Errored Interval Monitored EIP Ethernet Interface Processor (Cisco) EIR Equipment Identity Register EIR Equipment Identity Register (GSM) EIR Equipment Identity/Identification Register EIR Excess Information Rate (FR) EIRP Effective Isotropic Radiated Power EIRP Effective Isotropic Radiated Power (Radio) EISA Extended Industry Standard Architecture EKTS Electronic Key Telephone Service ELAN emulated LAN (ATM) ELAP EtherTalk Link Acces Protocol (AppleTalk) ELEC Ethernet Local Exchange Carrier Electronic Switched Network ELF Extremely Low Frequency ELFEXT Equal Level Far End Crosstalk ELMI Enhanced Local Management Interface EM Element Manager EMA Electronic Mail Association EMA Enterprise Management Architecture EMBARC Electronic Mail Broadcast to a Roaming Computer EMF Electro-Magnetic Force EMG Extension Module Group EMI Electro-Magnetic Interference EML Element Management Layer EMR Exchange Message Record EMS Element Management System (Network Mgmt.) EMS Emergency Management Services EMS Event Management Service EMS Expanded Memory Specification EN Egress Node EN End Node ENFIA Exchange Network Facilities for Interstate Access ENIAC Electronic Numerical Integrator and Calculator ENQ Enquiry ENS Enterprise Network Services EO End Office EOB End of Bus (DQDB) EOC Embedded Operations Channel (SONET) EOD End of Dialing EOF End Of File EOL End Of Line EOM End of Message (DQDB, SMDS) EOT End of Transmission (BISYNC) EPD Early Packet Discard (ATM) EPG Electronic Programme Guide EPROM Erasable Programmable Read Only Memory EPS Enhanced Paging Service EPSCS Enhanced Private Switch Controlled System EPSCS Enhanced Private Switched Communications Service Equipment ER Egress Router ER Equipment Room ER Explicit Rate (ATM) ERC Easily Recognizable Code ERD Enhanced Repeat Dial service Ergonomist ERL Echo Return Loss ERM Explicit Rate Marketing ERMES Enhanced Radio Messaging System ERO European Radiocommunications Office ERP Effective Radiated Power ES-IS End System-to-Intermediate System ES Earth Station ES Echo Suppressor ES End-System (ISO) ES Errored Second ESCON Enterprise System Connection (IBM) ESD Electro-Static Discharge ESDI Enhanced Small Device Interface ESDRAM Enhanced SDRAM ESF Extended Super Frame ESFDL Extended Super Frame Data-Link ESG Enhanced Service Gateway ESI End System Identifier ESIG European SMDS Interest Group ESME External Short Message Entity ESMR Enhanced Special Mobile Radio ESMR Enhanced Specialized Mobile Radio ESMTP Extended Simple Mail Transfer Protocol ESN Electronic Serial Number ESN Emergency Service Number ESN Equipment Serial Number ESP Encapsulating Security Payload ESP End Signaling Point ESP Enhanced Service Provider(s) ESP Enhanced Service Providers ESP Extended Services Processor (Cisco) ESPRIT European Strategic Programme for Research and Development in Information Technology ESS Electronic Switching System ET Exchange Termination ETACS Extended TACS ETB End of Text Block (BISYNC) ETC Eligible Telecommunications ETC Enhanced Throughput Cellular ETC Exchange Terminal Circuit ETE End-To-End ETF Electronic Telephone Features ETN Electronic Tandem Network ETR Early Token Release (Token Ring, FDDI) ETS European Telecommunications Standard ETSI European Telecommunications Standards Institute ETX End of Text (BISYNC) EUCL End User Common Line EULA End User License Agreement EUM End User Migration EUN External Update Notification EUnet European UNIX Network EWOS European Workshop for Open Systems Exchange Carrier EXCO EXchange Central Office EXM Exit Message EXZ Excessive Zeros SMBZ - SaMBoZaur - test for propagation of define: