Abstract: A system processes a communication session to be set up via a communication path from an originating location to a destination location through a network. A common Service Level Agreement (SLA) registry contains Quality-of-Service (QoS) related parameters representative of QoS valid for the domains between originating and destination locations. A QoS processor processes QoS related parameters retrieved from the SLA registry, for predicting the end-to-end QoS values for one communication path between originating and destination locations and for ranking or selecting or both ranking and selecting, based on predicted end-to-end QoS values, one or more recommended communication paths between the originating and destination locations.

Abstract: System for processing a communication session to be set up via a communication path from an originating location (ASD) to a destination location (TYO) through a communication network. A common Service Level Agreement (SLA) registry contains Quality-of-Service (QoS) related parameters representative for the QoS valid for the domains between the originating location and the destination location. A QoS processor is adapted for processing QoS related parameters which are retrieved from the SLA registry, for predicting the end-to-end QoS values for one communication path between the originating and destination location and for ranking or selecting or both ranking and selecting, based on the predicted end-to-end QoS values, one or more recommended communication paths between the originating location and the destination location.