A METHOD FOR ACHIEVING VOICE SERVICE BASED ON THE SERVICE TRIGGER, THE ROUTE CONTROL METHOD AND THE SYSTEM THEREFOR

摘要

A route control method of voice service based on the service trigger includes: a route decision-making point with route decision-making function of different domains obtains the route policy information respectively within each network domain of the user in voice service; the route decision-making point performs a route control to the voice service according to the route policy information of the user within each network domain. A route control system of voice service based on the service trigger and the method enable the route decision-making point in the different domains to adopt the same policy of route control for the same user of the call/session initiated by the different domains, ensure the entire achievement of the process of route control, and avoid the route bypassing resulted by the asynchronism of the route policy data, thereby achieve the purpose of ensuring the coincidence of route control and process of the voice service in different domains and improving success probability of the voice service.