7. An apparatus comprising a processor for dynamically instantiating a portion of a call flow graph having a plurality of states and a plurality of state transitions, the apparatus comprises: means for executing the graph, wherein the graph comprises a defined portion and an undefined portion, wherein a plurality of tokens traverse the graph executing functions; means for suspending one of the tokens in response to the one of the tokens detecting the undefined portion of the graph; means for generating a new portion of the graph for the undefined portion of the graph, said means for generating the new portion of the graph comprising: means for generating at least one definition file for the undefined portion of the graph; and means for executing the at least one definition file to form thereby the new portion of the graph; means for replacing the undefined portion of the graph with the new portion of the graph; and means for releasing the suspended token.
7. An apparatus comprising a processor for dynamically instantiating a portion of a call flow graph having a plurality of states and a plurality of state transitions, the apparatus comprises: means for executing the graph, wherein the graph comprises a defined portion and an undefined portion, wherein a plurality of tokens traverse the graph executing functions; means for suspending one of the tokens in response to the one of the tokens detecting the undefined portion of the graph; means for generating a new portion of the graph for the undefined portion of the graph, said means for generating the new portion of the graph comprising: means for generating at least one definition file for the undefined portion of the graph; and means for executing the at least one definition file to form thereby the new portion of the graph; means for replacing the undefined portion of the graph with the new portion of the graph; and means for releasing the suspended token. 11. The apparatus of claim 7 , wherein, upon being released, the released token traverses the new portion of the graph.