发明名称 Intelligent access control system
摘要 In operational environments where local loop generation equipment is used, communication interruptions between a central office and a customer premises device is minimized by using a dedicated communications link between the local loop generation equipment and the central office. A processing mechanism at the central office determines if, when, and under what circumstances the customer premises device will be notified in response to the activation of local loop generation equipment. This eliminates the need to place local loop generation equipment in series with a communications path that runs between the central office and the customer premises. The central office may provide the dedicated communications link in the form of a telephone line which is equipped to place outgoing local calls, but not equipped to receive incoming calls, and not equipped to place long-distance calls.
申请公布号 US6993123(B1) 申请公布日期 2006.01.31
申请号 US20000523267 申请日期 2000.03.10
申请人 VERIZON SERVICES CORP. 发明人 ALLEN JOSEPH;JONES DOUGLAS R.;O'CALLAGHAN DANIEL J.
分类号 H04M3/42 主分类号 H04M3/42
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