Method for registering a communication terminal

Details Method for registering a communication terminal Method for registering a communication terminal

2003-05-21

2009-10-27

Moise, Emmanuel L (Department: 2437)

Information security

Access control or authentication

Network

C726S004000, C726S005000, C726S009000

Reexamination Certificate

active

07610619

ABSTRACT:
The invention relates to a method for registering a communication terminal with a service network which organizes a communication service. Within this context, in a preliminary step, a logon IP address which was assigned to the communication terminal when the communication terminal logged onto the access network is received by the service network and is stored therein for the respective user of the communication terminal. When a first registration message sent by the communication terminal is received a token is transmitted to the communication terminal using a transport message, the token having been produced by the service network from the logon IP address and a random number using an encryption method, and token data associated with the token having been stored in the service network. When a second registration message which is sent by the communication terminal and contains the token is received the service network compares the token received, a public identifier and/or a private identifier with stored variables.

REFERENCES:
patent: 6865681 (2005-03-01), Nuutinen
3GPP TS 24.228 v5.0.0, Signalling flows for the IP multimedia call control based on SIP and SDP, pp. 1-41.
3rd Generation Partnership Project, “Technical Specification Group Core Network; Packet Domain; Interworking between the Public Land Mobile Network (PLMN) Supporting Packet Based Services and Packet Data Networks (PDN),” 3GPP TS 29.061, Release 5, pp. 1-53.
3rd Generation Partnership Project, “Technical Specification Group Services and System Aspects; IP Multimedia Subsystem (IMS),” Stage 2, 3GPP TS 23.228, Release 5, pp. 1-144.
3rd Generation Partnership Project, “Technical Specification Group Core Network; Signalling flows for the IP multimedia call control based on SIP and SDP,” Stage 3, Release 5, 3GPP TS 24.228, pp. 1-690.

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