发明名称 |
LAN TELEPHONE SYSTEM WITH FUNCTION COPING WITH INTERRUPTION, LAN TELEPHONE SET AND LAN TELEPHONE ADAPTOR |
摘要 |
PROBLEM TO BE SOLVED: To secure a telephone function by changing a connecting destination of a LAN telephone set/LAN telephone adaptor when power interruption or a network fault occurs in a LAN telephone system. SOLUTION: Each of LAN telephone sets 4-1, 4-2 (LAN telephone adaptor 5) connected to a server through a LAN cable and hub 3 in the LAN telephone system is provided with a link pulse detection circuit 17 for detecting a network fault, an AC power supply detection circuit 16 for detecting the existence of power supply and switches 13, 19 for changing a connecting destination of the LAN telephone set (the LAN telephone adaptor) connected from the hub 3 to a private branch exchange (main wire 10) with a power supply coping with of power interruption at the time of detecting at least either one of a network fault and power interruption. |
申请公布号 |
JP2000092527(A) |
申请公布日期 |
2000.03.31 |
申请号 |
JP19980261518 |
申请日期 |
1998.09.16 |
申请人 |
FUJITSU I-NETWORK SYSTEMS LTD |
发明人 |
YAGOU NOBUTO;MATSUMURA NAOYA |
分类号 |
H04M19/00;H04L12/28;H04L12/46;H04M3/00;H04M3/12;H04M11/00;H04Q1/28;H04Q3/58 |
主分类号 |
H04M19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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