资料来源 : Free On-Line Dictionary of Computing

International Telecommunications Union
     
         (ITU) ITU-T, the telecommunication
        standardisation sector of ITU, is responsible for making
        technical recommendations about telephone and data (including
        fax) communications systems for {PTT}s and suppliers.  Before
        1993-03-01 ITU-T was known as CCITT.  Every four years they
        hold plenary sessions where they adopt new standards; there
        was one in 1992.
     
        ITU works closely with all {standards} organisations to form
        an international uniform standards system for communication.
        Study Group XVII is responsible for recommending standards for
        data communications over telephone networks.  They publish the
        V.XX standards and X.n {protocols}.  {V.21} is the same as
        {EIA}'s {EIA-232}.  {V.24} is the same as EIA's {EIA-232C}.
        {V.28} is the same as EIA's {EIA-232D}.
     
        Address: International Telecommunication Union, Information
        Services Department, Place des Nations, 1211 Geneva 20,
        Switzerland.
     
        Telephone: +41 (22) 730 5554.  Fax: +41 (22) 730 5337.
     
        E-mail: ,  (Mail body:
        HELP).
     
        {Home (http://www.itu.ch/)}.
     
        ITU-T standards can be obtained by {FTP} from {Korea
        (ftp://kum.kaist.ac.kr/doc/STANDARDS/ccitt)}; UK - {Imperial
        (ftp://src.doc.ic.ac.uk/pub/computing/ccitt/ccitt-standards/)},
        {HENSA
        (ftp://unix.hensa.ac.uk/pub/uunet/doc/literary/obi/Standards/CCITT)};
        France - {INRIA (ftp://croton.inria.fr/ITU/ccitt)}, {IMAG
        (ftp://imag.imag.fr/doc/ccitt)}; {Israel
        (ftp://cs.huji.ac.il/pub/doc/standards/ccitt)}; FTP USA:
        {UUNET (ftp://ftp.uu.net/pub/lietrary/obi/Standards/CCITT)},
        {gatekeeper
       
     (ftp://gatekeeper.dec.com/pub/net/info/bruno.cs.colorado.edu/pub/standards/ccitt)},
        {world.std.com (ftp://world.std.com/obi/Standards/CCITT)};
        {Australia (ftp://metro.ucc.su.oz.au/pub/ccitt)}; {Germany
        (ftp://quepasa.cs.tu-berlin.de/pub/doc/CCITT)}; {Japan
        (ftp://sh.wide.ad.jp/CCITT)};
     
        (1995-01-16)