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ETSI GSM 04.81 : 4.4.1
ETSI GSM 04.81 : 4.4.1 MOBILE RADIO INTERFACE LAYER 3 - LINE IDENTIFICATION SS SPECIFICATION European Telecommunications Standards Institute
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ETSI GSM 07.32 : 4.0.0
ETSI GSM 07.32 : 4.0.0 European Telecommunications Standards Institute
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ETSI GSM 04.86 : 4.5.2
ETSI GSM 04.86 : 4.5.2 MOBILE RADIO INTERFACE LAYER 3 - CHARGING SS SPECIFICATION European Telecommunications Standards Institute
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AN ITAAB 060 : OCT 97
AN ITAAB 060 : OCT 97 ISDN TYPE APPROVAL ADVISORY BOARD (ITAAB); TESTING TO BE PERFORMED FOR BASIC ACCESS LAYER 1, INCLUDING VARIATIONS OF POWER SOURCES TO BE APPLIED DURING TESTING OF ELECTRICAL CHARACTERISTICS European Telecommunications Standards Institute
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ETSI GSM 06.06 : 4.0.2
ETSI GSM 06.06 : 4.0.2 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); HALF RATE SPEECH; ANSI-C CODE FOR THE GSM HALF RATE SPEECH CODEC European Telecommunications Standards Institute
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ETSI GSM 12.20 : 4.5.1
ETSI GSM 12.20 : 4.5.1 NETWORK MANAGEMENT PROCEDURES AND MESSAGES European Telecommunications Standards Institute
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TR 103 125 : 1.1.1
TR 103 125 : 1.1.1 CLOUD; SLAS FOR CLOUD SERVICES European Telecommunications Standards Institute
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ETSI GSM 11.23 : 4.3.0
ETSI GSM 11.23 : 4.3.0 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) (GSM) - BASE STATION SYSTEM (BSS) EQUIPMENT SPECIFICATION - PART 2: SIGNALLING ASPECTS European Telecommunications Standards Institute
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ETSI GSM 03.45 : 4.5.0
ETSI GSM 03.45 : 4.5.0 TECHNICAL REALIZATION OF FACSIMILE GROUP 3 SERVICE - TRANSPARENT European Telecommunications Standards Institute
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ETSI GSM 11.12 : 4.1.1
ETSI GSM 11.12 : 4.1.1 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2); SPECIFICATION OF THE 3 VOLT SUBSCRIBER IDENTITY MODULE - MOBILE EQUIPMENT (SIM - ME) INTERFACE European Telecommunications Standards Institute
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ETSI GSM 02.20 : 3.0.1
ETSI GSM 02.20 : 3.0.1 COLLECTION CHARGES European Telecommunications Standards Institute
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ETSI GSM 11.31 : 3.2.1
ETSI GSM 11.31 : 3.2.1 HOME LOCATION REGISTER SPECIFICATION European Telecommunications Standards Institute
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