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Voice mail communication with call blocking

  • US 5,680,442 A
  • Filed: 12/05/1994
  • Issued: 10/21/1997
  • Est. Priority Date: 12/05/1994
  • Status: Expired due to Term
First Claim
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1. In a switched telecommunications network comprising:

  • a first central office switching system connected to subscriber lines connected to subscriber premises terminals including at least one service switching point for selectively providing switched communications between subscriber lines;

    a second central office switching system connected to subscriber lines connected to subscriber premises terminals including at least one service switching point for selectively providing switched communications between subscriber lines;

    a network controller arranged separately from the central office switching systems and being connected by a common channel signaling network to at least the service switching points connected to said central office switching systems through at least one service transfer point arranged to convey control data to effect communications, said network controller storing pre-programmed call processing data associated with subscribers who are associated with the subscriber lines connected to subscriber premises terminals connected to the central office switching systems;

    each said switching system providing selective communications between subscriber lines and a centralized messaging system for storing messages directed to individual subscribers (subscriber messages), a method comprising;

    forwarding to one centralized messaging system a subscriber message directed to another centralized messaging system and storing said message in said one centralized messaging system;

    sending an inquiry to said network controller;

    sending a responsive message from said network controller and in response to the message forwarding to said other centralized messaging system via service switching points and at least one service transfer point connected in said common channel signaling network a digital signal which includes the information contained in said subscriber message stored in said one centralized messaging system.

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