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REALIZING METHOD OF EMERGENCY CALL REGISTRATION

  • US 20100115110A1
  • Filed: 12/14/2007
  • Published: 05/06/2010
  • Est. Priority Date: 01/05/2007
  • Status: Abandoned Application
First Claim
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1. A realizing method of emergency registration, wherein when a User Equipment roaming in a visited network initiates an emergency registration request, the method comprises the following steps of:

  • A;

    after receiving an emergency registration request message from the User Equipment, a Proxy Call Session Control Function of the visited network setting an emergency registration expiration time in the message, and sending the message to Serving Call Session Control Function of a home network of the User Equipment;

    B;

    said Serving Call Session Control Function obtaining said emergency registration expiration time from the emergency registration request message, and sending an emergency registration response message including said emergency registration expiration time to said Proxy Call Session Control Function;

    C;

    said Proxy Call Session Control Function sending said emergency registration response message to the User Equipment; and

    the User Equipment obtaining said emergency registration expiration time from said emergency registration response message.

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