US Patent Issued to T-Mobile USA on Oct. 21 for "Location-based S-CSCF selection in an IMS network" (Washington Inventor)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,452,642, issued on Oct. 21, was assigned to T-Mobile USA Inc. (Bellevue, Wash.).

"Location-based S-CSCF selection in an IMS network" was invented by Xavier Ligeret (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for a location-based serving call session control function (S-CSCF) selection in an IP multimedia subsystem (IMS) network is disclosed. According to an implementation, an interrogating CSCF (I-CSCF) of an IMS network receives a request to register a user equipment (UE) to use an IP multimedia service. The request may be a session initiation protocol (SIP) register. The I-CSCF determines that the UE is located in a fir...