Method and apparatus for disallowing the extension of a call through a network
Patent 4756020 Issued on July 5, 1988. Estimated Expiration Date: 
November 2, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 2, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesData base auto bill calling using CCIS direct signaling Interoffice callback arrangement Data base communication call processing method Method and apparatus for screening telephone calls Credit card actuated telecommunication access network Patent #: 4439636 InventorApplicationNo. 07/117392 filed on 11/02/1987US Classes:379/114.14, Fraud detection or control379/114.01, Call charge metering or monitoring379/114.17, Monitoring account or card usage balance379/114.26, Based on unique account code379/127.05, Billing option selection379/197, Central office379/91.02At switching stationExaminersPrimary: Schreyer, Stafford D.Attorney, Agent or FirmInternational ClassesH04Q 3/00 (20060101)H04M 3/42 (20060101) H04M 15/00 (20060101) AbstractMethod and apparatus is disclosed for selectively disallowing and allowing the extension of a call originated by a calling customer through a toll telecommunications network when the billing number involved with the call has a predetermined billing status such as delinquent payment. The toll network includes a toll office for switching calls between local telephone networks. The toll network also includes a data base having a list of delinquent payment billing numbers. In response to a call originated by a calling customer, the toll office sends the billing number involved with the call received from the local network to the data base. When the billing number involved with the call is in a list of billing numbers having a delinquent payment status, a "deny call" reply message is returned to the toll office to disallow the extension of the call through the toll network. The toll office also announces to the calling customer the disallowance of the call to discourage further attempts through the network. The toll office may include or utilize a remotely located operator system to process calls by offering calling customers alternate billing arrangements when the call is disallowed. A "call allow" reply message from the data base is returned to the operator system to process an operator assisted call.Other References
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