Method of switching a call to a multipoint conference call in a H.323 communication compliant environment
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United States of America Patent
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Jan 25, 2000
Grant Date -
N/A
app pub date -
Sep 9, 1998
filing date -
Sep 9, 1998
priority date (Note) -
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Abstract
A method of switching a call to a multipoint conference call includes sending a message (201) from a first terminal (105-T1) to a gatekeeper (102) which provides address translation and control access to a shared network medium (101). The call is initially established as a point to point communication between first terminal (101) and a second terminal (105-TN) over shared network medium (101) while complying with H.323 standard. Message (201) contains a request for the multipoint conference call. The method furthermore includes selecting a multipoint control unit (104) connected to shared network medium (101) to allocate resources for the multipoint conference call, and then switching the call to the multipoint conference call via the allocated resources. Thereby, the initial call is switched to a multipoint conference call without interrupting the initial call.
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