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Emergency intersystem paging for emergency call back

  • US 7,565,130 B2
  • Filed: 01/13/2003
  • Issued: 07/21/2009
  • Est. Priority Date: 01/13/2003
  • Status: Expired due to Term
First Claim
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1. A method of emergency service call back in a wireless system, comprising:

  • receiving, at a first switch, a called party number and a mobile equipment identity;

    recognizing, at the first switch, a call as an emergency call back if the called party number is an emergency routing number assigned to the first switch;

    paging, in-system, a mobile station using a default mobile station identifier identified by the mobile equipment identity when the called party number matches the emergency routing number assigned to the first switch, the default mobile station identifier including portions of the mobile equipment identity; and

    sending an emergency intersystem page from the first switch to a bordering switch when the mobile station fails to respond to an in-system page within a predetermined period of time such that the emergency intersystem page is identifiable as the emergency call back to be handled on a priority basis, the sending step sending the mobile equipment identity and the default mobile station identifier of the mobile station being paged in the emergency intersystem page.

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