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System and method for device-based E911 call trigger

  • US 10,433,145 B2
  • Filed: 12/22/2017
  • Issued: 10/01/2019
  • Est. Priority Date: 12/22/2017
  • Status: Active Grant
First Claim
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1. A method comprising:

  • Initiating an emergency call using a network having an Internet Protocol Multimedia Subsystem (IMS);

    Responsive to the initiating step, generating a trigger, wherein the trigger comprises a request to suspend a call restriction associated with a user device;

    and Transmitting the trigger using a Ut interface from a user device to an application server to suspend the call restriction;

    receiving a response from the application server wherein the response comprises a time period;

    wherein the call restriction is enabled at the end of the time period.

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