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    • 2. 发明专利
    • Telephone system, exchange system and terminal
    • 电话系统,交换系统和终端
    • JP2006173768A
    • 2006-06-29
    • JP2004360129
    • 2004-12-13
    • Toshiba Corp株式会社東芝
    • OZAKI TAKAHIRO
    • H04M3/00H04M11/00
    • H04M7/0066H04L65/1059H04M3/12
    • PROBLEM TO BE SOLVED: To provide a telephone system in which maintainability is enhanced by making possible to alter the service interface of a telephone terminal immediately upon occurrence of interface trouble.
      SOLUTION: A user designation mode for setting the service interface of an IP telephone terminal explicitly by user designation, and an automatic assignation mode where the service interface of the IP telephone terminal is implicit can be designated selectively for each terminal. Service mode of each IP telephone terminal is registered as a database in an exchange 200. When no response is received after transmitting a connection request a plurality of times, the IP telephone terminal broadcasts a connection request toward all main interfaces. Upon receiving the connection request from the IP telephone terminal in automatic assignment mode by broadcast, the exchange 200 slects an appropriate one of interfaces capable of servicing the IP telephone terminal at that moment in time and sends back the IP address of the IP telephone terminal service interface thus selected.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种电话系统,其中通过在发生接口故障时立即改变电话终端的服务接口,可维持性得到增强。 解决方案:可以为每个终端选择性地指定用于通过用户指定明确地设置IP电话终端的服务接口的用户指定模式,以及IP电话终端的服务接口是隐含的自动分配模式。 每个IP电话终端的服务模式在交换机200中被注册为数据库。当多次发送连接请求后没有收到响应时,IP电话终端向所有主接口广播连接请求。 在通过广播从自动分配模式中接收到来自IP电话终端的连接请求时,交换机200在该时刻选择适当的一个能够在该时刻为IP电话终端服务的接口,并且将IP电话终端服务的IP地址 界面如此选择。 版权所有(C)2006,JPO&NCIPI