发明授权
US08396972B2 Session control apparatus, software applied to session control apparatus, communication control method, and network system 有权
会话控制装置,应用于会话控制装置的软件,通信控制方法和网络系统

Session control apparatus, software applied to session control apparatus, communication control method, and network system
摘要:
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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