Session control apparatus, software applied to session control apparatus, communication control method, and network system
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United States of America Patent
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Feb 1, 2011
Issued Date -
N/A
app pub date -
Jan 23, 2004
filing date -
Jun 30, 2003
priority date (Note) -
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Abstract
A network system includes a session control server and a presence server. The session control server includes a presence information update unit that is started when the status changes and notifies the presence server of the changed status. The presence server includes a presence information control unit that controls the consistency of the notified update information.
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