A method and apparatus for enabling a network to determine the call volume rate versus the call blocking rate on a predefined time interval basis over multiple predefined time intervals are disclosed. For example, if call blocking rates do not show a progressive trend of decline as call volume rates...http://www.google.de/patents/US7664033?utm_source=gb-gplus-sharePatent US7664033 - Method and apparatus for automating the detection and clearance of congestion in a communication network
