Method of voice mail notification for cellular telephone systems

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United States of America Patent

PATENT NO 5177780
SERIAL NO

07599572

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A voice mail notification arrangement provides an audible notification to a mobile radiotelephone subscriber that one or more incoming calls have been redirected to the subscriber's mailbox. An unanswered incoming call is directed to the voice mail system which stores the calling party's voice message. A flag is set in a feature data base which includes this feature for the called subscriber. When the subscriber subsequently originates a call from their cellular mobile radiotelephone, or answers any incoming call, an audible notification (e.g., a burst of special tone) is provided, via the speaker of the mobile radiotelephone handset, to alert the subscriber at the outset of an active call that there are one or more voice messages in his/her voice mailbox. The flag is cleared when the voice messages are retrieved or upon the first call originated by the mobile subscriber, depending upon the mode of operation active in the subscriber's system.

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Patent Owner(s)

Patent OwnerAddress
AMERICAN TELEPHONE AND TELEGRAPH COMPANY A CORP OF NY550 MADISON AVENUE NEW YORK NY 10022-3201

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kasper, Gordon R Deerfield, IL 1 119
Kizior, Patricia A Downers Grove, IL 1 119

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