发明名称 |
Qualifying telephone lines for data transmission |
摘要 |
A system for qualifying subscriber lines in a telephony system for high speed data services. The system includes a measurement unit that makes one ended electrical measurements on the subscriber lines. Measurements on the subscriber lines are used to predict which of the lines can carry signals used in high speed data services. The predictions are used in marketing select data transmission services.
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申请公布号 |
US7436935(B2) |
申请公布日期 |
2008.10.14 |
申请号 |
US20040007970 |
申请日期 |
2004.12.09 |
申请人 |
TOLLGRADE COMMUNICATIONS, INC. |
发明人 |
FAULKNER ROGER |
分类号 |
H04B3/46;H04M1/24;H04B3/48;H04M3/08;H04M3/22;H04M3/30;H04M11/00 |
主分类号 |
H04B3/46 |
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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