A informational element (IE) is provided which permits the user to assign a precedence level to a call. A precedence/preemption connection admission control (P/P CAC) for use with any bandwidth allocation algorithm is also provided for processing a virtual circuit connection (VCC) request having an assigned...http://www.google.de/patents/US6141322?utm_source=gb-gplus-sharePatent US6141322 - Method and apparatus for precedence and preemption in ATM connection admission control