ETS 300 419 : 20001 BUSINESS TELECOMMUNICATIONS (BTC) - 2048 KBIT/S DIGITAL STRUCTURED LEASED LINES (D2048S) - CONNECTION CHARACTERISTICS European Telecommunications Standards Institute
ETR 311 : 20001 UNIVERSAL PERSONAL TELECOMMUNICATION (UPT) European Telecommunications Standards Institute
ETR 200016 : 20001 BUSINESS TELECOMMUNICATIONS (BT); SERVEABILITY PERFORMANCE OBJECTIVES FOR PRIVATE TELECOMMUNICATIONS NETWORK (PTN) European Telecommunications Standards Institute
ETR 151 : 20001 EQUIPMENT ENGINEERING (EE); ELECTRO-MAGNETIC COMPATIBILITY (EMC) TESTING OF TELECOMMUNICATION EQUIPMENT ABOVE 1 GHZ European Telecommunications Standards Institute
ETS 300 374-1 : 20001 INTELLIGENT NETWORK (IN) - INTELLIGENT NETWORK CAPABILITY SET 1 (CS1) CORE INTELLIGENT NETWORK APPLICATION PROTOCOL (INAP) - PROTOCOL SPECIFICATION European Telecommunications Standards Institute
ETS 300 182-5 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); ADVICE OF CHARGE (AOC) 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
ETS 300 732 : 20001 TELEVISION SYSTEMS - ENHANCED 625-LINE PAL/SECAM TELEVISION - GHOST CANCELLATION REFERENCE (GCR) SIGNALS European Telecommunications Standards Institute
ETS 300 443-1 : 20001 BROADBAND AND INTEGRATED SERVICES DIGITAL NETWORK (B-ISDN) - DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. TWO (DSS2) PROTOCOL - B-ISDN USER-NETWORK INTERFACE LAYER 3 SPECIFICATION FOR BASIC CALL/BEARER CONTROL - PROTOCOL SPECIFICATION European Telecommunications Standards Institute
ETR 060 : 20002 SIGNALLING PROTOCOLS AND SWITCHING (SPS) - GUIDELINES FOR USING ABSTRACT SYNTAX NOTATION ONE (ASN.1) IN TELECOMMUNICATION APPLICATION PROTOCOLS European Telecommunications Standards Institute
ETS 300 121 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); APPLICATION OF THE ISDN USER PART (ISUP) OF CCITT SIGNALLING SYSTEM NO. 7 FOR INTERNATIONAL ISDN INTERCONNECTIONS (ISUP VERSION 1) European Telecommunications Standards Institute
ETS 300 625 : 20002 EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - STAGE 1 DESCRIPTION OF UNSTRUCTURED SUPPLEMENTARY SERVICE DATA (USSD) European Telecommunications Standards Institute
ETS 300 207-3 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - DIVERSION SUPPLEMENTARY SERVICES - DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL - TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&TP) SPECIFICATION FOR THE USER European Telecommunications Standards Institute