发明名称 |
Method and apparatus for simultaneous line-interface wiring collision detection |
摘要 |
A method uses circuitry in a data interface that provides telephony service over a high-speed network to detect the presence of a secondary source of VBH battery voltage on a tip-ring system. If a detected source other than the data interface is impressing battery voltage on the tip-ring system, the circuitry disconnects the data interface's battery source and produces a message that another source is VBH. The determination that another source is present may be based on a threshold value to account for noise. The message is used to produce an alarm at a user interface device. The alarm may be a light indication mounted on the data interface. The alarm may also be a web page that is retrieved from a memory device and displayed on a PC, a PDA or the data interface. The alarm may be provided locally and remotely to a provider's server.
|
申请公布号 |
US2004046674(A1) |
申请公布日期 |
2004.03.11 |
申请号 |
US20030462556 |
申请日期 |
2003.06.16 |
申请人 |
ANDREWS JEFF;PADULA RICHARD |
发明人 |
ANDREWS JEFF;PADULA RICHARD |
分类号 |
H04M3/10;(IPC1-7):G08B21/00 |
主分类号 |
H04M3/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|