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1. 发明授权

US07489677B2 Exchange equipment 有权
标题翻译：交换设备
公开(公告)号：US07489677B2
公开(公告)日：2009-02-10
申请号：US10762577
申请日：2004-01-23
申请人： Toru Yoshihara , Shinya Suzuki , Kazunori Katagiri
发明人： Toru Yoshihara , Shinya Suzuki , Kazunori Katagiri
IPC分类号： H04L12/66
CPC分类号： H04Q3/0045
摘要： Since in a system of the invention comprising a TU portion 1b for accommodating general extension telephones 5 and PSTN 8, and a TM portion 1a for performing a call control with a packet network, call control information from the PSTN 8 and the like to the packet network is received by the TU portion 1b and then transferred to the TM portion 1a and converted into call control data adapted to the packet network, and voice data from the PSTN 8 and the like to the packet network is received by the TU portion 1b and then converted into voice data adapted to the packet work, it is possible to use a packet network such as the Internet, convert voice data into IP packet data and thereby provide a communication service equivalent to a conventional circuit switching service at low cost.
摘要翻译：由于在本发明的系统中，包括用于容纳普通分机5和PSTN 8的TU部分1b和用分组网络执行呼叫控制的TM部分1a，从PSTN 8等的呼叫控制信息到分组网络由TU部分1b接收，然后被传送到TM部分1a并被转换成适用于分组网络的呼叫控制数据，并且来自PSTN 8等的语音数据到分组网络被TU部分1b接收，并且然后转换为适合分组工作的语音数据，可以使用诸如因特网之类的分组网络，将语音数据转换为IP分组数据，从而以低成本提供与传统电路交换服务相当的通信服务。

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