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Reactive management of dropped calls in a wireless communication system

  • US 7,072,641 B2
  • Filed: 03/19/2002
  • Issued: 07/04/2006
  • Est. Priority Date: 03/19/2002
  • Status: Expired due to Term
First Claim
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1. In a wireless communications system in which a mobile station communicates with a base station via an RF air interface, a method carried out by the mobile station comprising:

  • making a determination that a call in which the mobile station was engaged has been dropped, wherein making the determination comprises detecting that data has stopped flowing over the RF air interface from the base station to the mobile station, although the mobile station has not sent or received an end-of-call signal for the call; and

    responsive to the determination, automatically recording in the mobile station a post-call-drop speech signal provided by a user of the mobile station, wherein recording in the mobile station a post-call-drop speech signal provided by the user comprises receiving a speech signal provided by the user, encoding the speech signal as CDMA/EVRC data, and storing the CDMA/EVRC data in a data storage medium.

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