Automated public phone control for charge and collect billing
April 20, 2009. 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 diverting system Method and apparatus for automating special service call handling Electronic audio communication system Apparatus for detecting pick-up at a remote telephone set Detecting signals within a passband on a telephone line Telephone call forwarding device Alarm information transmission system for coin telephone PBX Intercept and caller interactive attendant bypass system Coin operated telephone Monitoring and recording apparatus for connection to a telephone line InventorsAssigneeApplicationNo. 342594 filed on 04/20/1989US Classes:379/144.02, Collect calling from payphone379/91.01, Credit authorization379/93.03, Personal identification379/145, Fraud or interference prevention379/155, At terminal station (e.g., coin paystation)379/199, At substation379/903PASSWORDExaminersPrimary: Schreyer, Stafford D.Attorney, Agent or FirmInternational ClassesH04M 003/42H04M 003/17 AbstractThe charge and collect-call functions of a public telephone are arranged automatically by a microcomputer system preferably connected on customer premises between the phone terminal instrument and the local loop, wherein control of said instrument, network signaling and call placement voice prompting of the call parties, recognition of responses from the parties and the network, call detail records of numbers and timings, and data communications with other computers are accomplished by the microcompter system without requiring human operator assistance or the transmission of calls over excessive distances to reach such an operator.Other References
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