| 
 E.164  | 
 Public network addressing standard utilising up to a maximum of 15 digits. Atm uses E.164 addressing for public network addressing  | 
| 
 EAI  | 
 Enterprise Application Integration  | 
| 
 ECT  | 
 Explicit Call Transfer  | 
| 
 EDGE  | 
 Enhanced Data rate for Global Evolution  | 
| 
 EDI  | 
 Electronic Document Interchange  | 
| 
 EDI  | 
 Electronic Data Interchange  | 
| 
 EDIFACT  | 
 Electronic Data Interchange for Administration, Commerce and Transport  | 
| 
 EDMS  | 
 Electronic Document Management System  | 
| 
 EF  | 
 Elementary File  | 
| 
 EFCI  | 
 Explicit Forward Congestion Indication  | 
| 
 EIR  | 
 Equipment Identity Register  | 
| 
 ELAN  | 
 Emulated Local Area Network  | 
| 
 eMLPP  | 
 Enhanced Multi-Level Precedence and Pre-emption  | 
| 
 EMS  | 
 Enhanced SMS  | 
| 
 ENST  | 
 Ecole Nationale Supérieure des Télécommunications  | 
| 
 EOC  | 
 Embedded Operation Channel  | 
| 
 EOM  | 
 End Of Message  | 
| 
 EOPM  | 
 Edit Once Publish Many  | 
| 
 EPROM  | 
 Erasable and Programmable Read-Only Memory  | 
| 
 ER  | 
 Explicit Rate  | 
| 
 ERC  | 
 European Radiocommunication Committee  | 
| 
 ERP  | 
 Entreprise Ressource Planning  | 
| 
 ES  | 
 End System  | 
| 
 ESI  | 
 End System Identifier  | 
| 
 ESP  | 
 Encapsulating Security Payload  | 
| 
 ETS  | 
 ETSI Telecommunication Standard  | 
| 
 ETSI  | 
 European Telecommunications Standards Institute  | 
| 
 EUIC  | 
 Enhanced User Identity Confidentiality  | 
