1. A method for providing real-time communication to a subscriber outside a home system in a communication network, wherein the communication network includes the home system and a roaming system, the method comprising the steps of: providing access to a home switch located in the home system; providing access to a roaming switch located in the roaming system; providing access to a trunk operatively connecting the home switch to the roaming switch; providing the subscriber with a universal address that can be mapped to one or more addresses of the subscriber; storing the universal address in a database operatively connected to the home switch and the roaming switch; providing the subscriber with a local mobile station having a local roaming address code within the roaming system; updating the universal address to map to the local address code; and allowing the subscriber to receive incoming calls from the universal address within the roaming system through the local mobile station without incurring roaming charges.