1. A method, comprising: receiving a call event at an intelligent network simulator application operating on a mobile terminal; collecting, by the intelligent network simulator application, information related to the call event; generating, by the intelligent network simulator application, a message including the information collected by the intelligent network simulator application; transmitting the message to a first gateway server deployed in a carrier network; recognizing the message as a comprising a simulated intelligent network trigger; informing a second gateway server deployed in an enterprise network of the simulated intelligent network trigger, wherein the mobile terminal is allocated to a member of the enterprise network; processing the simulated intelligent network trigger according to policy of the enterprise network; and informing the intelligent network simulator application to perform at least one of establish the call event, answer the call event, disconnect the call event and abandon the call event.