Patent ID: 7076245

Claim:
In a wireless communications system in which a mobile station communicates with a base station via an RF air interface, wherein communications from the mobile station to the base station over the RF air interface define a base station (BS) received signal strength, and wherein a call drop is expected to occur when the BS received signal strength falls to a call-drop level, a method of managing dropped calls comprising: monitoring the BS received signal strength of the wireless communication system; setting a threshold warning level to a level above the call-drop level by an extent sufficient to allow for a predetermined duration of time between when the received BS received signal strength falls below the threshold warning level and when the BS received signal strength falls to the call-drop level; determining that the BS received signal strength falls below the threshold warning level; and in response to a determination that the BS received signal strength falls below the threshold warning level, warning a user of the mobile station that the call is about to be dropped.