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Subscriber controlled call list deregistration

  • US 5,898,770 A
  • Filed: 09/26/1996
  • Issued: 04/27/1999
  • Est. Priority Date: 09/26/1996
  • Status: Expired due to Term
First Claim
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1. A telecommunication system, comprising:

  • a plurality of interconnected switching nodes including a first switching node for routing an original call between a calling party and a called party;

    a code receiver within the first switching node for monitoring a line of the called party for determining whether a specified code has been entered by the called party and transmitting a signal indicative thereof;

    a message generator for playing a specified audio message to request removal of the called party from a calling party call list, a called party identification being associated with said specified audio message; and

    a processor within the first switching node coupled to receive and respond to the signal transmitted by the code receiver by initiating a call back to the calling party, connecting the message generator to the calling party line, and activating the message generator to play the specified audio message.

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