SELECTIVE ROUTING CONTROL FOR CIRCUIT SWITCHED FALLBACK
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United States of America Patent
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Issued Date -
Jun 20, 2024
app pub date -
Dec 20, 2022
filing date -
Dec 20, 2022
priority date (Note) -
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Abstract
Systems, methods, and devices that relate to staged discontinuation of the circuit-switched fallback are disclosed. In one example aspect, a method for wireless communication includes receiving, by a network server configured to manage subscriber data, a request from a telephony application server requesting a routing of a call or a message for a mobile subscriber and transmitting, by the network server to the telephony application server, a response indicating that the packet-switched network is not available for routing the call or the message. The response comprises a value that identifies the location of the mobile subscriber to enable the telephony application server to refrain from transmitting a subsequent request requesting the routing of the call or the message using the circuit-switched network.
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