ETS 300 420 : 20001 BUSINESS TELECOMMUNICATIONS (BTC) - 2048 KBIT/S DIGITAL STRUCTURED LEASED LINES (D2048S) - TERMINAL EQUIPMENT INTERFACE European Telecommunications Standards Institute
TBR 020001 : 20001 ATTACHMENT REQUIREMENTS FOR TERMINAL EQUIPMENT TO BE CONNECTED TO CIRCUIT SWITCHED DATA NETWORKS AND LEASED CIRCUITS USING A CCITT RECOMMENDATION X.21 INTERFACE, OR AT AN INTERFACE PHYSICALLY, FUNCTIONALLY AND ELECTRICALLY COMPATIBLE WITH CCITT RECOMMENDATION X.21 BUT OPERATING AT ANY DATA SIGNALLING RATE UP TO,...
ETS 300 666-2 : 20001 BROADBAND INTEGRATED SERVICES DIGITAL NETWORK (B-ISDN) - DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. TWO (DSS2) PROTOCOL - CONNECTED LINE IDENTIFICATION RESTRICTION (COLR) SUPPLEMENTARY SERVICE - PROTOCOL IMPLEMENTATION CONFORMANCE STATEMENT (PICS) European Telecommunications Standards...
ETS 300 280 : 20001 TERMINAL EQUIPMENT (TE) - FACSIMILE GROUP 4 CLASS 1 EQUIPMENT ON THE INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - TERMINAL TESTING European Telecommunications Standards Institute
ETR 171 : 20001 METHODS FOR TESTING AND SPECIFICATION (MTS); PROFORMA FOR SCOPING REPORTS European Telecommunications Standards Institute
ETR 092 : 20001 BROADBAND INTEGRATED SERVICES DIGITAL NETWORK (B-ISDN) - FRAMEWORK FOR CONFORMANCE TESTING OF LOWER LAYERS IN B-ISDN European Telecommunications Standards Institute
ETS 300 587-2 : 20002 EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - BASE STATION SYSTEM - MOBILE SERVICES SWITCHING CENTRE (BSS-MSC) INTERFACE - INTERFACE PRINCIPLES European Telecommunications Standards Institute
ETR 194 : 20001 EQUIPMENT ENGINEERING (EE); CONNECTOR FOR ITU-T DEFINED G. SERIES DIGITAL HIERARCHY INTERFACES European Telecommunications Standards Institute
ETSI GSM 02.86 : 050000 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - ADVICE OF CHARGE (AOC) SUPPLEMENTARY SERVICES - STAGE 1 European Telecommunications Standards Institute
ETS 300 636 : 20001 TRANSMISSION AND MULTIPLEXING (TM) - TIME DIVISION MULTIPLE ACCESS (TDMA) POINT-TO MULTIPOINT DIGITAL RADIO SYSTEMS European Telecommunications Standards Institute
ETR 253 : 20001 PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) - SIGNALLING SYSTEM R2 - SIGNALLING TESTS VIA THE EUROPEAN COMMUNICATIONS SATELLITE (ECS) European Telecommunications Standards Institute
ETR 188 : 20001 PRIVATE TELECOMMUNICATION NETWORK (PTN); CORDLESS TERMINAL MOBILITY (CTM); IMPACT OF CTM ON FIXED PTN European Telecommunications Standards Institute