Missed call notification to cellular telephone using short text messaging

Abstract

A system for and method of providing Short Message Service (SMS) message notification to a cellular telephone customer regarding missed incoming calls that are missed while the cellular telephone is unavailable such as when the telephone is powered off. This is accomplished by generating a notification message at a SS7 gateway that includes caller ID / name ID information and / or time of the missed call. The message is preferably generated at the SS7 gateway only upon receipt of an “access denied” response with a reason code of at least one of MS Inactive, Busy, No Page Response or Unavailable that is sent from a home location register in response to a location request sent by the SS7 gateway. Once the generated message is complete it is sent to a message center where it is stored until it is retrieved by the cellular telephone soon after registration with the cellular network.

Description

[0001]Notice: More than one reissue application has been filed for the reissue of U.S. Pat. No. 6,799,017. The reissue application numbers are 11 / 528,677 (the present application) and the reissue application Ser. No. 12 / 099,930, filed Apr. 9, 2008 is a reissue of 09 / 839,217, filed Apr. 23, 2001, now U.S. Pat. No. 6,799,017, 09 / 839,217 is a continuation in part of 09 / 822,332, filed Apr. 2, 2001, now U.S. Pat. No. 6,882,828.<?insert-end id="INS-S-00001" ?>[0002]This application is a continuation-in-part application of U.S. Ser. No. 09 / 822,332, filed Apr. 2, 2001, which is incorporated herein in its entirety.BACKGROUND[0003]1. Field of the Invention[0004]The present invention is directed to cellular telephone system call features and management. More particularly, the present invention is directed to a system for and method of notifying a cellular telephone customer of a missed call using a short text message.[0005]2. Background of the Invention[0006]Cellular telephone usage has ...

AI Technical Summary

Benefits of technology

[0009]The present invention addresses and overcomes the drawbacks of having to offer only conventional cellular telephone voice mail service to cellular telephone customers by providing Short Message Service (SMS) message notification to a cellular telephone customer about incoming calls that are missed. That is, the present invention provides a means for notifying a cellular telephone customer of missed calls (e.g., because the cellular telephone is not registered) without requiring the cellular telephone customer to purchase a relatively expensive voice mail add-on feature or option as part of their cellular telephone service plan. The present invention is operable with both landline and cellular telephone-originated calls.

[0013]Thus, the present invention provides numerous advantages, not the least of which is that a cellular telephone customer can receive a missed call notification service that, while not as extensive as voice mail service, nevertheless provides useful and timely information to the customer about missed calls. Further, the cost to implement the service of the present invention is relatively low since it is not necessary to purchase and field expensive voice mail systems to retain messages. Accordingly, customers will be more willing to purchase the less expensive service.

Problems solved by technology

In all cases, however, cellular telephone customers typically seek a reliable alternative to conventional wireline means of communication wither because they are away from the wireline means of communication, or because access to those means of communication is inconvenient.

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