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Organization / Document #
ITU
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  • 【Organization】ITU
  • 【Document #】ITU-T M.721
  • SYSTEM AVAILABILITY INFORMATION POINT

  • 【Date】1988/11/1
  • 【Language】English
  • 【Status】Active
  • 【Organization】ITU
  • 【Document #】ITU-T Q.21
  • SYSTEMS RECOMMENDED FOR OUT-BAND SIGNALLING

  • 【Date】1988/11/1
  • 【Language】English
  • 【Status】Active
  • 【Organization】ITU
  • 【Document #】ITU-T SERIES E.800 SUPP 1
  • Table of the Erlang formula

  • 【Date】1988/11/1
  • 【Language】English
  • 【Status】Active
  • 【Organization】ITU
  • 【Document #】ITU-T Q.23
  • TECHNICAL FEATURES OF PUSH-BUTTON TELEPHONE SETS

  • 【Date】1988/11/1
  • 【Language】English
  • 【Status】Active
  • 【Organization】ITU
  • 【Document #】ITU-T R.20
  • TELEGRAPH MODEM FOR SUBSCRIBER LINES

  • 【Date】1988/11/1
  • 【Language】English
  • 【Status】Active
  • 【Organization】ITU
  • 【Document #】ITU-T T.330
  • TELEMATIC ACCESS TO INTERPERSONAL MESSAGING SYSTEM

  • 【Date】1988/11/1
  • 【Language】English
  • 【Status】Active
  • 【Organization】ITU
  • 【Document #】ITU-T I.241.1
  • Teleservices Supported by an ISDN: Telephony

  • 【Date】1988/11/1
  • 【Language】English
  • 【Status】Active
  • 【Organization】ITU
  • 【Document #】ITU-T I.241.2
  • TELESERVICES SUPPORTED BY AN ISDN: TELETEX

  • 【Date】1988/11/1
  • 【Language】English
  • 【Status】Active
  • 【Organization】ITU
  • 【Document #】ITU-T T.390
  • TELETEX REQUIREMENTS FOR INTERWORKING WITH THE TELEX SERVICE

  • 【Date】1988/11/1
  • 【Language】English
  • 【Status】Active
  • 【Organization】ITU
  • 【Document #】ITU-T SERIES E.800 SUPP 5
  • Teletraffic implications for international switching and operational procedures resulting from a failure of a transmission facility

  • 【Date】1988/11/1
  • 【Language】English
  • 【Status】Active