No:
7484240
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Application no:
09905463
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Filed date:
2001-07-13
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Issue date:
2009-01-27
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Kind:
B2
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Claims:
19
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Drawing sheets:
5
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Abstract:
The invention proposes a method of performing authentication of a subscriber during a subscriber equipment terminated call, comprising the steps of sending a session invitation message (S4, S5) to the subscriber equipment, the session invitation message including authentication information (AuthData1), and performing an authentication procedure in the subscriber equipment by using the authentication information. The invention also proposes a corresponding network system, network control element and subscriber entity.
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US Classes:
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Inventors:
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Primary examiner:
Zand Kambiz
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Assistant examiner:
Tran Tongoc
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Agents:
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Assignees:
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Field of search:
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No:432
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No:435
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Foreign documents:
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0 998 095 / 2000-04-30
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WO 00/69140 / 2000-10-31
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Other references:
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Handley, “SIP: Session INitiation Protocol”, Network Working Group, Mar. 1999.
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Handley M. et al. “Very Large Conferences on the Internet: the Internet Multimedia Conferencing Architecture”, Computer Networks, Elsevier Science Publishers B.V., Amsterdam, NL, vol. 31, NR. 3, pp. 191-204 XP004304598 ISSN: 1389-1286 section 8.1 section 8.3.
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References:
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6662223
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