ETS 300 158 : 20001 SATELLITE EARTH STATIONS (SES); TELEVISION RECEIVE-ONLY (TVRO-FSS) SATELLITE EARTH STATIONS OPERATING IN THE 11/12 GHz FSS BANDS European Telecommunications Standards Institute
ETR 056 : 20001 RADIO EQUIPMENT AND SYSTEMS (RES); DIGITAL EUROPEAN CORDLESS TELECOMMUNICATIONS (DECT) SYSTEM DESCRIPTION DOCUMENT European Telecommunications Standards Institute
ETSI GSM 04.01 : 050000 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - MOBILE STATION - BASE STATION SYSTEM (MS-BSS) INTERFACE - GENERAL ASPECTS AND PRINCIPLES European Telecommunications Standards Institute
ETS 300 592 : 20002 EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - BASE STATION CONTROLLER - BASE TRANSCEIVER STATION (BSC-BTS) INTERFACE GENERAL ASPECTS European Telecommunications Standards Institute
ETR 169 : 20001 SATELLITE EARTH STATIONS AND SYSTEMS (SES); COMMON TECHNICAL REGULATIONS (CTRS) IN THE SATELLITE EARTH STATION EQUIPMENT FIELD European Telecommunications Standards Institute
ETS 300 052-5 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); MULTIPLE SUBSCRIBER NUMBER (MSN) SUPPLEMENTARY SERVICE; DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL; TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&TP) SPECIFICATION FOR THE NETWORK European Telecommunications Standards Institute
ETR 336 : 20001 TELECOMMUNICATION MANAGEMENT NETWORK (TMN) European Telecommunications Standards Institute
ETSI GSM 09.05 : 050000 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM; INTERWORKING BETWEEN THE PUBLIC LAND MOBILE NETWORK (PLMN) AND THE PACKET SWITCHED PUBLIC DATA NETWORK (PSPDN) FOR PACKET ASSEMBLY/DISASSEMBLY (PAD) FACILITY ACCESS European Telecommunications Standards Institute
ETR 255 : 20001 PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) - SIGNALLING SYSTEM R2 - USE OF SIMPLIFIED TEST EQUIPMENT European Telecommunications Standards Institute
ETS 300 257 : 20002 PRIVATE TELECOMMUNICATION NETWORK (PTN) - INTER EXCHANGE SIGNALLING PROTOCOL DIVERSION SUPPLEMENTARY SERVICES European Telecommunications Standards Institute
ETS 300 745-2 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); MESSAGE WAITING INDICATION (MWI) SUPPLEMENTARY SERVICE; DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL; PROTOCOL IMPLEMENTATION CONFORMANCE STATEMENT (PICS) PROFORMA SPECIFICATION European Telecommunications Standards Institute
ETS 300 085 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); 3.1 kHz TELEPHONY TELESERVICE - ATTACHMENT REQUIREMENTS FOR HANDSET TERMINALS European Telecommunications Standards Institute