Method and apparatus for altering the access format of telephone calls
Patent 5113433 Issued on May 12, 1992. Estimated Expiration Date: 
August 29, 2010. 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.
August 29, 2010. 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 ReferencesTelephone call metering device Method and apparatus for altering the access format of telephone calls Patent #: 4908852 InventorsAssigneeApplicationNo. 577096 filed on 08/29/1990US Classes:379/130, At subscriber station379/132, Paystation (e.g., escrow control)379/144.02, Collect calling from payphone379/144.03, Fraud detection in payphone379/155At terminal station (e.g., coin paystation)ExaminersPrimary: Schreyer, Stafford D.Attorney, Agent or FirmInternational ClassesH04M 015/30H04M 017/02 AbstractA telephone system and method of operation are disclosed which use a microprocessor control system (10), a speech generator (34) and speech memory (46) to automatically place calls without the need of a live operator. The telephone receives a destination telephone number and billing format information from a user. The microprocessor control system (10) alters the access format of the destination number and places the call as a direct dial telephone call. The billing format information is stored in a call record memory (11). The billing format information may later be retrieved to facilitate the billing of charges for the call to an appropriate party. | |
