Signaling referring to setup of H.324 video telephone between media gateway and controller
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United States of America Patent
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Apr 4, 2017
Issued Date -
N/A
app pub date -
Sep 8, 2006
filing date -
Oct 21, 2005
priority date (Note) -
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Abstract
A video telecommunication connection is established via a landline telecommunications network and an IP multimedia subsystem telecommunications network using a media gateway control function of at least one Internet multimedia-media gateway device in the IP multimedia subsystem telecommunications network. An H.223 multiplex level usable for a telecommunication connection is exposed to an H.223 protocol negotiation, in carrying out an H.245 protocol negotiations for setting up the H.223 protocol negotiations connection for a telecommunication connection. A media gateway control function device is informed when the H.223 logic channels are open by H.245 signaling, thereby enabling the Internet multimedia-media gateway device of the IP multimedia subsystem telecommunications network to carry out at least part of the setup.
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