ETS 300 278 : 20001 NETWORK ASPECTS (NA) - SUPPORT OF EXISTING SERVICES WITH GUARANTEED CONSTANT BIT RATE AND SPECIFIED TRANSFER DELAY ON METROPOLITAN AREA NETWORK (MAN) European Telecommunications Standards Institute
ETR 096 : 20001 HUMAN FACTORS (HF) - PHONE BASED INTERFACES (PBI) - HUMAN FACTORS GUIDELINES FOR THE DESIGN OF MINIMUM PHONE BASED USER INTERFACE TO COMPUTER SERVICES European Telecommunications Standards Institute
ETS 300 358 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - COMPLETION OF CALLS TO BUSY SUBSCRIBER (CCBS) - SUPPLEMENTARY SERVICE - FUNCTIONAL CAPABILITIES AND INFORMATION FLOWS European Telecommunications Standards Institute
ETS 300 778-1 : 20001 PUBLIC SWITCHED TELEPHONE NETWORK (PSTN); PROTOCOL OVER THE LOCAL LOOP FOR DISPLAY AND RELATED SERVICES; TERMINAL EQUIPMENT REQUIREMENTS; OFF-LINE DATA TRANSMISSION European Telecommunications Standards Institute
ETS 300 369-5 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - EXPLICIT CALL TRANSFER (ECT) SUPPLEMENTARY SERVICE - DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL - TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&P) SPECIFICATION FOR THE NETWORK European Telecommunications Standards Institute
ETR 341 : 20001 DIGITAL ENHANCED CORDLESS TELECOMMUNICATIONS (DECT) - GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS (GSM) - DECT/GSM INTERWORKING PROFILE (IWP) European Telecommunications Standards Institute
ETS 300 357 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - COMPLETION OF CALLS TO BUSY SUBSCRIBER (CCBS) SUPPLEMENTARY SERVICE - SERVICE DESCRIPTION European Telecommunications Standards Institute
ETS 300 394-1 : 20001 RADIO EQUIPMENT AND SYSTEMS (RES) - TRANS-EUROPEAN TRUNKED RADIO (TETRA) - CONFORMANCE TESTING SPECIFICATION European Telecommunications Standards Institute
ETSI GSM 03.14 : 050000 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - SUPPORT OF DUAL TONE MULTI-FREQUENCY SIGNALLING (DTMF) VIA THE GSM SYSTEM European Telecommunications Standards Institute
ETS 300 356-19 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - SIGNALLING SYSTEM NO. 7 - ISDN USER PART (ISUP) VERSION 2 FOR THE INTERNATIONAL INTERFACE - THREE-PARTY (3PTY) SUPPLEMENTARY SERVICE European Telecommunications Standards Institute
ETS 300 175-4 : 20002 RADIO EQUIPMENT AND SYSTEMS (RES); DIGITAL EUROPEAN CORDLESS TELECOMMUNICATIONS (DECT) - COMMON INTERFACE - DATA LINK CONTROL LAYER European Telecommunications Standards Institute
ETS 300 217-2 : 20001 NETWORK ASPECTS (NA) - CONNECTIONLESS BROADBAND DATA SERVICE (CBDS) - PART 2: BASIC BEARER SERVICE DEFINITION European Telecommunications Standards Institute