| 摘要 |
<p>A permanently-installed customer-premises telephone traffic and line monitoring system is microprocessor driven to tabulate and sisplay a wide spectrum of traffic and line features. This monitoring system interfaces to the telephone network (customer lines) using a Line Interface Module (LIM) which is connected to the RJ21X network interface. The LIM measures voltage levels and timing intervals on the tip and ring conductors of each telephone line in order to record and accumulate traffic and line information. This information is viewed by the customer on any one of several display devices: a Data Display Unit (DDU), a smaller (and optional) Mini-Monitoring Unit (MMU), and/or the customer's personal computer (PC). Initial, operational, and desired performance parameters are entered into the LIM by the customer via the personal computer. Thus, the system can continually display information in real time, and produce reports specified by the customer's stated performance requirements.</p> |
