Patents Assigned to T-Mobile USA, Ine.
  • Patent number: 10904736
    Abstract: An emergency call practice application can execute on user equipment (UE) to allow users to practice dialing 9-1-1 or other emergency numbers. In a network practice mode, the emergency call practice application can initiate a practice emergency call by sending a call setup message to an IP Multimedia Subsystem (IMS). The IMS can route the call setup message to a Public Safety Answering Point (PSAP) routing server, which can recognize a destination identifier in the call setup message as being associated with a test server instead of a PSAP. The PSAP routing server can forward the call setup message to the test server to connect the practice emergency call.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: January 26, 2021
    Assignee: T-Mobile USA, Ine.
    Inventor: Hsin-Fu Henry Chiang