ETS 300 788 : 20001 DIGITAL ENHANCED CORDLESS TELECOMMUNICATIONS (DECT); GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS (GSM); INTEGRATED SERVICES DIGITAL NETWORK (ISDN); DECT ACCESS TO GSM VIA ISDN; FUNCTIONAL CAPABILITIES AND INFORMATION FLOWS European Telecommunications Standards Institute
ETS 300 119-1 : 20001 EQUIPMENT ENGINEERING (EE); EUROPEAN TELECOMMUNICATION STANDARD FOR EQUIPMENT PRACTICE - INTRODUCTION AND TERMINOLOGY European Telecommunications Standards Institute
ETS 300 359-3 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - COMPLETION OF CALLS TO BUSY SUBSCRIBER (CCBS) SUPPLEMENTARY SERVICE - DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL - TEST SUITE STRUCTURE AND TEST PURPOSES (TSS&TP) European Telecommunications Standards Institute
ETR 083 : 20001 UNIVERSAL PERSONAL TELECOMMUNICATION (UPT) - GENERAL UPT SECURITY ARCHITECTURE European Telecommunications Standards Institute
ETS 300 531 : 20001 EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - DISCONTINUOUS RECEPTION (DRX) IN THE GSM SYSTEM European Telecommunications Standards Institute
ETS 300 679 : 20001 TERMINAL EQUIPMENT (TE) - TELEPHONY FOR THE HEARING IMPAIRED - ELECTRICAL COUPLING OF TELEPHONE SETS TO HEARING AIDS European Telecommunications Standards Institute
ETR 066 : 20001 UNIVERSAL PERSONAL TELECOMMUNICATION (UPT) - REQUIREMENTS ON INFORMATION FLOWS AND PROTOCOLS European Telecommunications Standards Institute
ETS 300 522 : 20003 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - NETWORK ARCHITECTURE European Telecommunications Standards Institute
ETS 300 700 : 20001 DIGITAL ENHANCED CORDLESS TELECOMMUNICATIONS (DECT) European Telecommunications Standards Institute
ETS 300 138-3 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - CLOSED USER GROUP (CUG) SUPPLEMENTARY SERVICE - DIGITAL SUBSCRIBER SIGNALLING European Telecommunications Standards Institute
ETS 300 524 : 20001 EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - SIGNALLING REQUIREMENTS RELATING TO ROUTEING OF CALLS TO MOBILE SUBSCRIBERS European Telecommunications Standards Institute
ETS 300 100 : 20001 INTEGRATED SERVICES DIGITAL NETWORK (ISDN); ROUTING IN SUPPORT OF ISUP VERSION 1 SERVICES European Telecommunications Standards Institute