November 1985 | Technical Report NTIA TR-85-182
ISDN: Numbering, Addressing, and Interworking
Cite This Publication
Val J. Pietrasiewicz, J. Jay Austin, and Robert F. Linfield, “ISDN: Numbering, Addressing, and Interworking,” Technical Report NTIA TR-85-182, U.S. Department of Commerce, National Telecommunications and Information Administration, Institute for Telecommunication Sciences, November 1985.
Abstract: The factors that affect the design of a numbering plan for the Integrated Services Digital Network (ISDN) involved a complex interplay between existing plans, national priorities, and technical system limitations. These factors are the subject of this report. Desirable attributes of any numbering plan are explained, existing standards covering various plans are discussed and some actual plans currently in use are examined. The development of the Numbering plan for ISDN by the Consultative Committee for International Telegraph and Telephone is essentially complete. However there is still a need to understand and make sense of the relationship of all of the standardized plans and the implications on interworking as public networks evolve toward the ISDN concept and technology.
Keywords: ISDN; addressing; interworking; numbering plans; telephony
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