发明名称 |
EXTENSION CALL CONTROLLER AND BUSINESS PLACE MOBILE PHONE SYSTEM |
摘要 |
PROBLEM TO BE SOLVED: To provide an easily maintainable extension call controller and a business place mobile phone system capable of performing speech with the portable terminal and fixed terminal of another business place based on an extension number. SOLUTION: This extension call controller arranged in each business place specifies an SS7 signal station code assigned to the extension call controller of an incoming destination business place based on a dial number showing a call connection request message received from a terminal in the business place, and transmits the SS7 call connection request message(LAM) including an extension number as incoming number information to a public portable telephone network. Thus, it is possible to realize call connection between business places connected through the public portable telephone network in this business office mobile phone system. COPYRIGHT: (C)2006,JPO&NCIPI
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申请公布号 |
JP2006197175(A) |
申请公布日期 |
2006.07.27 |
申请号 |
JP20050005960 |
申请日期 |
2005.01.13 |
申请人 |
HITACHI COMMUNICATION TECHNOLOGIES LTD |
发明人 |
MATSUMOTO NORIHISA;TANABE SHIRO |
分类号 |
H04M3/00;H04M3/42;H04W8/26;H04W84/10 |
主分类号 |
H04M3/00 |
代理机构 |
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代理人 |
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主权项 |
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