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    • ITU
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    ITU Q.931 BIS : 1995

    PICS AND ABSTRACT TEST SUITE FOR ISDN DSS 1 LAYER 3 - CIRCUIT MODE, BASIC CALL CONTROL CONFORMANCE TESTING

    International Telecommunications Union (CCIR) and (CCITT)

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    ITU X.151 : 2003 ERRATUM 1 04

    FRAME RELAY OPERATIONS AND MAINTENANCE - PRINCIPLES AND FUNCTIONS

    International Telecommunications Union (CCIR) and (CCITT)

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    ITU M.1532 : 2000

    NETWORK MAINTENANCE SERVICE PERFORMANCE AGREEMENT (MSPA)

    International Telecommunications Union (CCIR) and (CCITT)

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    ITU E.300 : 1988

    SPECIAL USES OF CIRCUITS NORMALLY EMPLOYED FOR AUTOMATIC TELEPHONE TRAFFIC

    International Telecommunications Union (CCIR) and (CCITT)

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    ITU Q 1541 : 1998

    UPT STAGE 2 FOR SERVICE SET 1 ON IN CS-1 - PROCEDURES FOR UNIVERSAL PERSONAL TELECOMMUNICATION: FUNCTIONAL MODELLING AND INFORMATION FLOWS

    International Telecommunications Union (CCIR) and (CCITT)

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    ITU X.638 : 1996

    MINIMAL OSI FACILITIES TO SUPPORT BASIC COMMUNICATIONS APPLICATIONS

    International Telecommunications Union (CCIR) and (CCITT)

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    ITU G.732 : 1988

    CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 2048 KBIT/S

    International Telecommunications Union (CCIR) and (CCITT)

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    ITU R SM 1879 : 2013

    THE IMPACT OF POWER LINE HIGH DATA RATE TELECOMMUNICATION SYSTEMS ON RADIOCOMMUNICATION SYSTEMS BELOW 470 MHZ

    International Telecommunications Union (CCIR) and (CCITT)

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    ITU Q.42 : LATEST

    STABILITY AND ECHO (ECHO SUPPRESSORS)

    International Telecommunications Union (CCIR) and (CCITT)

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    ITU M.1015 : 1988

    TYPES OF TRANSMISSION ON LEASED CIRCUITS

    International Telecommunications Union (CCIR) and (CCITT)