• DocumentCode
    2881646
  • Title

    Call Progress System for Provision of Calling Tones and Ringing Power

  • Author

    Wuorinen, J.H. ; Kinsel, T.S.

  • Author_Institution
    Bell Laboratories, Whippany, New Jersey
  • fYear
    1979
  • fDate
    26-29 Nov. 1979
  • Firstpage
    466
  • Lastpage
    471
  • Abstract
    A Call Progress System generating telephone calling tones and ringing power with a high degree of flexibility is described. It has a multi-microcomputer architecture and is personalized for a particular application by use of a ROM.
  • Keywords
    Baseband; Communication system control; Control systems; Frequency conversion; Low pass filters; Power generation; Power harmonic filters; Read only memory; Sampling methods; Telephony;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Telecommunications Energy Conference, 1979. INTELEC 1979. International
  • Conference_Location
    Washington, DC, USA
  • Type

    conf

  • DOI
    10.1109/INTLEC.1979.4793677
  • Filename
    4793677
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2881646