System and method for managing call continuity in IMS network environment

System and method for managing call continuity in IMS network environment

  • CN 101,141,812 B
  • Filed: 08/08/2007
  • Issued: 12/24/2014
  • Est. Priority Date: 08/11/2006
  • Status: Active Grant
First Claim
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1. use in Internet Protocol IP Multimedia System IMS network and call out the user equipment (UE) and an exercisable method that are associated, described method comprises:

  • By in one domain be supplied to the described call information be associated of calling out the network node being arranged in described IMS network, described call information comprises and calls out the call reference number that is associated;

    Receive IP Multimedia Routing Number IMRN and described call reference number from described network node, wherein, described IMRN is mapped to call information at least partially;

    Verify that the call reference number received from described network node is still effective;

    Send the message comprising described IMRN to described network node, realize call continuity to call out described in another territory.

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