Signal strength-based call forwarding for wireless phones
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United States of America Patent
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Jun 23, 2009
Grant Date -
N/A
app pub date -
Sep 18, 2003
filing date -
Sep 18, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
in a CDMA network. When the signal strength drops below a threshold, the mobile station is programmed to automatically send a feature code to the wireless network to activate unconditional call forwarding to a previously programmed directory number. When the mobile station re-enters the service network, i.e., the signal strength improves to an acceptable level or goes above the threshold, the mobile station automatically sends a feature code to turn off the unconditional call forwarding. Thereafter, incoming phone calls are directed to the mobile station.
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