A communication system includes mobile units, a network switching center, and service centers to provide a variety of traditional and enhanced services to the mobile units. Using a user interface, an operator of a mobile unit issues a request for services from one or more service centers. The network...http://www.google.fr/patents/US6405033?utm_source=gb-gplus-shareBrevet US6405033 - System and method for routing a call using a communications network
System and method for routing a call using a communications network
