An improved method and system for accessing wireless data services that reduce messaging and enable roaming subscribers to access data services are described. A wireless communication system in accordance with the present invention includes at least a service control point and a gateway system (e.g.,...http://www.google.fr/patents/US6628954?utm_source=gb-gplus-shareBrevet US6628954 - System, method, and program for controlling access to data services by a subscriber unit in a wireless network
System, method, and program for controlling access to data services by a ...
