ALEXANDRIA, Va., July 30 -- United States Patent no. 12,375,531, issued on July 29, was assigned to NOKIA TECHNOLOGIES OY (Espoo, Finland).
"CSCF restoration" was invented by Sugumar Baskaran (Bangalore, India) and Jayakumar Jayaraman (Bangalore, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "It is provided a method comprising: instructing a user data repository to store subscription data, wherein the subscription data comprise information on a notification from the user data repository to which a call session control function subscribed by a subscription; monitoring whether the call session control function has an indication that the call session control function might have lost the subscription data;...