Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-11-01
2005-11-01
Trinh, Sonny (Department: 2687)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S466000, C455S432300, C370S401000
Reexamination Certificate
active
06961576
ABSTRACT:
The invention relates to a method for causing a communication link to be established between a mobile communication terminal of a mobile radio network and a partner communication terminal of a communication network operating in accordance with the Internet Protocol. The mobile communication terminal is associated with a directory number of the mobile radio network and the partner communication terminal is associated with an IP address of the communication network. To cause a communication to be established between the mobile communication terminal and the partner communication terminal, a text message, sent out by the mobile communication terminal and containing the IP address, is received by a service node connected to the mobile radio network, and the service node sends a task message including the directory number and the IP address to the communication network. Thereupon, the communication link KV is established between the mobile communication terminal and the partner communication terminal.
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“3rd Generation Partnership Project: Technical Specification Group Services and System Aspects; IP Multimedia (IM) Subsystem—Stage 2” 3GPP TS 23.228 V5.1.0 (Jun. 2001).
Morrison & Foerster / LLP
Siemens Aktiengesellschaft
Trinh Sonny
Vu Thai N.
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