The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2025
Filed:
Dec. 20, 2022
T-mobile Usa, Inc., Bellevue, WA (US);
Harikishore Allu Balan, Lynnwood, WA (US);
Saqib Badar, Bellevue, WA (US);
T-Mobile USA, Inc., Bellevue, WA (US);
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.