CIRCUIT-SWITCHED CALL DELIVERY
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United States of America Patent
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Issued Date -
May 14, 2015
app pub date -
Aug 29, 2012
filing date -
Aug 29, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Example embodiments disclosed herein relate to implementing a circuit-switched (CS) call delivery to a mobile device. An unstructured supplementary service data (USSD) message is sent to the mobile device to return to a CS domain. If the mobile device has returned to a first mobile switching center (MSC) of the CS domain, the call is delivered. If the mobile device has not returned to the first MSC, a duration of time set for the mobile device to register with a second MSC of the CS domain and the call is delivered if registration is complete within the duration of time.
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