ETS 300 063 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); DIRECT DIALLING IN (DDI) SUPPLEMENTARY SERVICE - FUNCTIONAL CAPABILITIES AND INFORMATION FLOWS European Telecommunications Standards Institute
ETR 170 : 20001 HUMAN FACTORS (HF); GENERIC USER CONTROL PROCEDURES FOR TELECOMMUNICATION TERMINALS AND SERVICES European Telecommunications Standards Institute
ETSI GSM 09.03 : 050000 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - SIGNALLING REQUIREMENTS ON INTERWORKING BETWEEN THE INTEGRATED SERVICES DIGITAL NETWORK (ISDN) OR PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) AND THE PUBLIC LAND MOBILE NETWORK (PLMN) (GSM 9.03) European Telecommunications Standards Institute
TBR 007 : 20002 ELECTROMAGNETIC COMPATIBILITY AND RADIO SPECTRUM MATTERS (ERM); ENHANCED RADIO MESSAGE SYSTEM (ERMES); RECEIVER REQUIREMENTS European Telecommunications Standards Institute
ETR 162 : 20001 DIGITAL VIDEO BROADCASTING (DVB); ALLOCATION OF SERVICE INFORMATION (SI) CODES FOR DVB SYSTEMS (REFERRED TO IN ANNEX A) European Telecommunications Standards Institute
ETS 300 454 : 20001 RADIO EQUIPMENT AND SYSTEMS (RES) - WIDE BAND AUDIO LINKS - TECHNICAL CHARACTERISTICS AND TEST METHODS European Telecommunications Standards Institute
ETR 165 : 20001 HUMAN FACTORS (HF); RECOMMENDATION FOR A TACTILE IDENTIFIER ON MACHINE READABLE CARDS FOR TELECOMMUNICATION TERMINALS European Telecommunications Standards Institute
ETS 300 711 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); PUBLIC SWITCHED TELEPHONE NETWORK (PSTN); VIRTUAL CARD CALLING (VCC); SERVICE DESCRIPTION European Telecommunications Standards Institute
ETS 300 417-3-1 : 20001 TRANSMISSION AND MULTIPLEXING (TM); GENERIC REQUIREMENTS OF TRANSPORT FUNCTIONALITY OF EQUIPMENT; PART 3-1:SYNCHRONOUS TRANSPORT MODULE-N(STM-N) REGENERATOR AND MULTIPLEX SECTION LAYER FUNCTIONS European Telecommunications Standards Institute
ETS 300 541 : 20001 EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - ROUTEING OF CALLS TO/FROM PUBLIC DATA NETWORKS (PDN) European Telecommunications Standards Institute
ETS 300 455-2 : 20001 BROADBAND INTEGRATED SERVICES DIGITAL NETWORK (B-ISDN) - BROADBAND VIRTUAL PATH SERVICE (BVPS) - BVPS FOR PERMANENT COMMUNICATIONS (BVPS-R) European Telecommunications Standards Institute
ETS 300 114 : 20002 ATTACHMENTS TO THE PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) - BASIC ATTACHMENT REQUIREMENTS FOR MODEMS STANDARDIZED FOR USE ON THE PSTN European Telecommunications Standards Institute