Simulating intelligent network triggers in a network system is provided. A mobile terminal is configured with an intelligent network Simulator adapted to detect call events and originate simulated intelligent network triggers in response to the call events. Call progressions implemented according to the simulated intelligent network triggers may be managed or coordinated by at least one of a carrier-gateway server and an Enterprise-gateway server. Call progressions implemented by simulated intelligent network triggers may be specified according to Enterprise member policies or general Enterprise behaviors. Advantageously, if a carrier network does not support a trigger infrastructure that has capabilities of originating triggers and terminating triggers, or if a roaming agreement is not in place that allows transfer of triggers between carriers, the use of an intelligent network Simulator provides an alternative mechanism for providing IN service functionality without network support for intelligent network triggers.