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Method and apparatus for registration of a user as a subscriber in a communication network

  • US RE45,161 E1
  • Filed: 06/17/2011
  • Issued: 09/23/2014
  • Est. Priority Date: 04/03/2001
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • generating a session initiation protocol registration message defining a plurality of user identities of a user, the session initiation protocol registration message transmitted to an Internet Protocol multimedia service network, the session initiation protocol registration message comprising;

    a To message header used to define a first user identity,a From message header used to define a second user identity, anda third dedicated header field used to define at least a third user identity, wherein the first user identity, the second user identity, and at least the third user identity corresponding correspond to the plurality of user identities; and

    transmitting the session initiation protocol registration message.

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