发明名称 |
Technique for realizing fault-tolerant ISDN PBX |
摘要 |
A technique for realizing a fault tolerance of an integrated services digital network private branch exchange (ISDN PBX), includes: dualizing main control devices of the ISDN PBX into an operating section and a waiting section so as to sustain a subscriber service in progress even when the ISDN PBX has an unexpected problem; allowing the operating section to transfer to the waiting section various information required for performing a section switching to sustain an identical status between the operating section and waiting section, while providing a service requested by a user; and allowing the waiting section to perform the section switching so as to sustain the service as a new operating section when the operating section has an error.
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申请公布号 |
US6002665(A) |
申请公布日期 |
1999.12.14 |
申请号 |
US19970925694 |
申请日期 |
1997.09.09 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
CHOE, JAE-WEON |
分类号 |
H04M3/24;H04Q11/04;(IPC1-7):G01R31/08;H04M3/08 |
主分类号 |
H04M3/24 |
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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