Cellular telephone unit capable of automatic interaction with audio services
Patent 4964156 Issued on October 16, 1990. Estimated Expiration Date: 
December 1, 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.
December 1, 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 ReferencesMultiple dial adapter Telephone apparatus PBX telephone call control system Communication terminal call reminder with automatic dialing Method and apparatus for visual indication of stored voice signals Patent #: 4853952 InventorAssigneeApplicationNo. 443836 filed on 12/01/1989US Classes:379/189, Fraud or improper use mitigating or indication (e.g., "blue box", "black box")379/40, Automatic dialing379/88.12, Indication or notification of message379/355.08, Including prefix in the call address signal379/903, PASSWORD455/413Voice mailExaminersPrimary: Brown, Thomas W.International ClassesH04M 001/27H04M 001/66 H04M 003/50 H04M 011/00 AbstractA cellular telephone unit includes logic circuitry programmed automatically to initiate a check of a tlephone-accessible audio-response system (e.g., a voice mailbox system) upon power-up of the telephone unit. The programming of the logic circuitry treats any number entered by the user during the check that does not correspond to the preprogrammed voice mail account number as a command, and thereupon discontinues the check and processes the command. | |
