发明名称 |
BROADBAND DIGITAL SUBSCRIBER LOOP SYSTEMS |
摘要 |
A telecommunications system has broadband digital subscriber loop circuitry at each end of a link and is arranged to transmit telephony signals by digitising them and carrying them within the DSL signals whereby, in the event of failure of one of the DSL circuits or its associated power supply, the telephony signal is automatically switched to bypass to DSL circuits. |
申请公布号 |
WO9747157(A1) |
申请公布日期 |
1997.12.11 |
申请号 |
WO1997GB01535 |
申请日期 |
1997.06.09 |
申请人 |
GPT LIMITED;FORTIER, JOHN, DOUGLAS;WILLIAMS, HOWARD |
发明人 |
FORTIER, JOHN, DOUGLAS;WILLIAMS, HOWARD |
分类号 |
H04Q3/42;H04J11/00;H04Q11/04 |
主分类号 |
H04Q3/42 |
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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