A method of monitoring DS-0 alarm signals generated by telecommunication network elements, where the network elements include multiple network processing circuits connected to DS-1 facilities. The method comprises the steps of collecting the DS-0 alarm signals; cross-referencing the network elements...http://www.google.com.tw/patents/US5473596?utm_source=gb-gplus-share專利 US5473596 - Method and system for monitoring telecommunication network element alarms
