SYSTEM AND METHOD FOR PROVIDING ACCESS TO VALUE ADDED SERVICES FOR ROAMING USERS OF MOBILE TELEPHONES

摘要

A system for providing a roaming subscriber (16) with access to services available in a first telephone network (10), when subscriber is roaming in a second telephone network (12), includes a packet-switch network (36). Signals required for the services are transmitted between the first telephone network and the second telephone network via the packet-switch network.