An aspect of the present invention provides a method of establishing call controller communication in a multi-layer transport network where a plurality of signaling communications networks may exist within each layer. An interlayer call controller association is enhanced to provide associations of multiple client call controllers to a single server layer call controller. A method of collecting sets of associations related to a single server layer call is provided so that a sequence of client call controllers may be constituted. The plurality of signaling communications networks is then used to pass control information between call controllers in that sequence.