E Extension EAB Extended Access Barring EAI Extended Acquisition Indicators EAP Extensible Authentication Protocol EAS Edge Application Server EASDF Edge Application Server Discovery Function EATF Emergency Access Transfer Function EBCF Event Based Charging Function EBI EPS Bearer ID EBSG elementary basic service groups EBU European Broadcasting Union EC Energy Consumption ECA Event-Configuration-Answer ECC Electronic Communications Committee ECC Error correction code ECC European Communications Committee ECD Enhanced Call Disposition ECDSA Elliptic Curve Digital Signature Algorithm ECGI Evolved Cell Global Identifier ECIES Elliptic Curve Integrated Encryption Scheme ECM EPS Connection Management ECN Explicit Congestion Notification ECR Enhanced Call Routing ECR Event-Configuration-Request ECR excitation classification refinement ECRR Enhanced Coverage Restriction Removed ECS Edge Configuration Server ECS Emergency Call Server ECT E2Aplicit Communication Transfer ECT Explicit Call Transfer ECT Explicit Communication Transfer ECT Explicit call transfer ED Energy Detection EDA Extended Dynamic Allocation EDN Edge Data Network EDP-N Event Detection Point -Notification EDP-R Event Detection Point -Request EDT Early Data Transfer EDT Early data transmission EE Energy Efficiency EE Environmental Engineering EEA EPS Encryption Algorithm EEC Edge Enabler Client EENLV Extended Emergency Number List Validity EES Edge Enabler Server EESS Earth exploration-satellite service EF Elementary File EFI Event Filtering Information EFL Effective Frequency Load EFMML EFICE-FF Multimedia Messages List EFR Enhanced Full Rate EFTA Enhanced Flexible Timeslot Assignment EFWRI EFICE-FF WLAN Reauthentication Identity EGAN Enhanced Generic Access Networks EGMF Exposure Governance Management Function EHC Ethernet Header Compression EHSP Equivalent Home Service Providers EI Error Indication EIA EPS Integrity Algorithm EID Error Insertion Device EIR Equipment Identity Register EIRP Equivalent Isotropic Radiated Power EIS Equivalent Isotropic Sensitivity EIT Event Information Table EL Echo Loss EL enhancement layer EM Element Manager EM Element Manger EME Encrypted Media Extensions EML Element Management Layer EMM EPS Mobility Management EMMI Electrical Man Machine Interface EMR Enhanced Measurement Report EMS Enhance Management System EMS Enhanced Messaging Service ENC Electronic Navigation Chart ENSCT EPS NAS Security Context Type EOP Earth Orientation Parameters EOTD Enhanced Observed Time Difference EOTF electro-optical transfer function EP Elementary procedure EP Entry Point EPA Event Publication Agent EPA Extended Pedestrian A EPC Enhanced Packet Core EPC Enhanced Power Control EPC Evolved Packet Core EPC enhanced power control EPD Extended protocol discriminator EPS Evolved Packet Service EPS Evolved Packet System EPTI Extended procedure transaction identity ER Emergency Room ER Error Ratio ERA Event-Reporting-Answer ERF Event Reporting Function ERO European Radiocommunications Office ERP Ear Reference Point ERP Envelope Response Posting ERR Event-Reporting-Request ERT Expected Residual Time ES Elementary stream ES Enhanced Status ES Equipment Supplier ES enhanced service ESAB Extended Synchronisation Access Burst ESAB Extended Synchronization Access burst ESC Early Symmetric Crypto ESC Event State Compositor ESI Encoding Symbol ID ESM EPS Session Management ESM Energy Saving Management ESM Energy Savings Management ESM effective SNR mapping ESMLC Evolved Serving Mobile Location Centre ESQK Emergency Service Query Key ESRK Emergency Service Routing Key ESRN Emergency Service Routing Number ET Early Termination EUI End-User Identity EUTRA Evolved Universal Terrestrial Radio Access EUTRAN Evolved Universal Terrestrial Radio Access Network EVM Error Vector Magnitude EVRFR Erased Valid RATSCCH Frame Rate EVS Enhanced Voice Service EVS Enhanced Voice Services EVSP Equivalent Visited Service Providers EXI Efficient XML Interchange