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ETS 300 392-10-20 : 20002 TERRESTRIAL TRUNKED RADIO (TETRA) - VOICE PLUS DATA (V+D) - PART 10: SUPPLEMENTARY SERVICES STAGE 1 - SUB-PART 20: DISCREET LISTENING (DL) European Telecommunications Standards Institute
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TS 101 369 : 7.2.0 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); TERMINAL EQUIPMENT TO MOBILE STATION (TE-MS) MULTIPLEXER PROTOCOL European Telecommunications Standards Institute
TS 101 135 : 1.5.3 TRANSMISSION AND MULTIPLEXING (TM); HIGH BIT-RATE DIGITAL SUBSCRIBER LINE (HDSL) TRANSMISSION SYSTEMS ON METALLIC LOCAL LINES; HDSL CORE SPECIFICATION AND APPLICATIONS FOR COMBINED ISDN-BA AND 2 048 KBIT/S TRANSMISSION European Telecommunications Standards Institute
TR 101 619 : 1.1.1 NETWORK ASPECTS (NA) - CONSIDERATIONS ON NETWORKS MECHANISM FOR CHARGING AND REVENUE ACCOUNTING European Telecommunications Standards Institute
TS 101 388 : 1.4.1 ACCESS TERMINALS TRANSMISSION AND MULTIPLEXING (ATTM); ACCESS TRANSMISSION SYSTEMS ON METALLIC ACCESS CABLES; ASYMMETRIC DIGITAL SUBSCRIBER LINE (ADSL) - EUROPEAN SPECIFIC REQUIREMENTS European Telecommunications Standards Institute
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TS 101 356 : 7.2.0 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); GENERAL PACKET RADIO SERVICE (GPRS); MOBILE STATION (MS) SUPPORTING GPRS European Telecommunications Standards Institute
TR 102 081 : 1.1.1 NETWORK ASPECTS (NA) - NUMBER PORTABILITY TASK FORCE (NPTF) - SIGNALLING REQUIREMENTS TO SUPPORT NUMBER PORTABILITY European Telecommunications Standards Institute
TR 101 329 : 2.1.1 TELECOMMUNICATIONS AND INTERNET PROTOCOL HARMONIZATION OVER NETWORKS (TIPHON) - GENERAL ASPECTS OF QUALITY OF SERVICE (QOS) European Telecommunications Standards Institute
TS 101 395 : 7.0.0 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) - NAME IDENTIFICATION SUPPLEMENTARY SERVICES - STAGE 2 European Telecommunications Standards Institute