Method and system for a communication session initialization in a telecommunication network
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United States of America Patent
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Jun 23, 2015
Grant Date -
May 2, 2013
app pub date -
Oct 30, 2012
filing date -
Sep 3, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A method, Call Agent (CA), and circuit-switched terminal for setting up a multimedia session from the circuit-switched terminal toward a packet-switched terminal in a telecommunication network. An Instant Messaging (IM) server receives an IM message from the circuit-switched terminal and forwards the contents of the IM message to the CA. The CA generates or retrieves a unique call token that identifies the terminals, and sends the call token to the IM server, which forwards the token to the circuit-switched terminal. In response, the circuit-switched terminal initiates setup of a circuit-switched call to an identified Media Gateway Controller (MGC). The MGC then sets up a packet-switched session with the packet-switched terminal to complete the setup of the multimedia session.
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