Method for establishing call state information without maintaining state information at gate controllers
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United States of America Patent
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-
Jul 5, 2005
Grant Date -
N/A
app pub date -
Nov 14, 2003
filing date -
Aug 4, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
State information for a call between a calling party and a called party is established without maintaining the state information at a gate controller. A setup request for the call is received at an originating gate controller. The originating gate controller is connected to a trusted network. The calling party is associated with an originating interface unit coupled to an untrusted network. The setup request for the call is authorized. The authorized setup request is sent to the called party. State information for the call is formatted based on a setup acknowledgment message received from the calling party. The state information for the call is sent from the originating gate controller to the originating interface unit without maintaining the state information at the originating gate controller.
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