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Signaling in call transfer calling operations to control the initiation of secondary number telephone service features

  • US 5,790,638 A
  • Filed: 06/07/1996
  • Issued: 08/04/1998
  • Est. Priority Date: 06/07/1996
  • Status: Expired due to Term
First Claim
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1. A method for controlling the initiation of secondary number telephone service features during a call transfer calling operation, comprising the steps of:

  • responsive to receipt of a telephone call dialed to a primary telephone number subscribing to a call transfer service feature, retrieving at least one of a plurality of secondary telephone numbers associated with the primary telephone number;

    setting up a transfer call via at least one switching node to a telephone for each of the retrieved plurality of secondary telephone numbers; and

    signaling each switching node in connection with setting up the transfer call not to activate a service feature associated with the secondary telephone numbers.

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