1. A method for modifying probabilistic routing parameters in a routing network for a next time frame, comprising the steps, performed on a processor, of: receiving information regarding a measured number of calls routed to each of a plurality of output nodes for a previous time frame; estimating a number of calls routed to each of a first plurality of input nodes origins for the next time frame based on the measured number; calculating a first plurality of probabilistic routing parameters for the next time frame based on the estimated number; and displaying the first plurality of probabilistic routing parameters to a network manager, wherein the network manager modifies the first plurality of probabilistic routing parameters.