发明授权
- 专利标题： Switch device and system
- 专利标题（中）： 开关设备和系统
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申请号： US08989790申请日： 1997-12-12
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公开(公告)号： US06633591B2公开(公告)日： 2003-10-14
- 发明人: Mamoru Goto , Takeshi Uehara , Fumiko Senba , Umihiko Motoki
- 申请人： Mamoru Goto , Takeshi Uehara , Fumiko Senba , Umihiko Motoki
- 优先权： JP9-042331 19970226
- 主分类号： H04J312
- IPC分类号： H04J312
摘要：
A switch device connectable to an ISDN includes a first part which adds a calling ID information element to a first call setup message to be transferred over an ISDN tie line connecting the switch device to another switch device. The calling ID information element includes identification information on a terminal which is connected to the ISDN and makes a call.
公开/授权文献
- US20010043623A1 SWITCH DEVICE AND SYSTEM 公开/授权日：2001-11-22