Invention Grant
- Patent Title: Automatic redial after call establishment failure
- Patent Title (中): 呼叫建立失败后自动重拨
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Application No.: US11624715Application Date: 2007-01-19
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Publication No.: US08126491B1Publication Date: 2012-02-28
- Inventor: Yung Shirley Choi-Grogan
- Applicant: Yung Shirley Choi-Grogan
- Applicant Address: US GA Atlanta
- Assignee: AT&T Mobility II LLC
- Current Assignee: AT&T Mobility II LLC
- Current Assignee Address: US GA Atlanta
- Agency: Moazzam & Associates, LLC
- Main IPC: H04B7/00
- IPC: H04B7/00 ; H04W72/00 ; H04W24/00

Abstract:
A mobile station re-tries initiating a call after a previous failure of a call to that number due to poor air interface signal communication. When the mobile station detects such a call failure, it records in memory an indication of the call failure and the number that was called. Once the mobile station has found and registered with a base station with which it is determined that good signal communication can be established, the presence of a call failure indication in memory causes the processing logic to direct the mobile station to re-try the failed call.
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