1. A service management access node comprising a mobile network interface, an Internet interface, and a service conversion and message relaying platform between said interfaces for provision of Internet content to mobile subscribers, characterised in that, the platform comprises means for controlling mobile subscriber access according to security criteria, for allowing a mobile subscriber to create a personalised content profile, and for storing said profile and managing transmission of requests and delivery of content according to said profile, and the mobile network interface comprises a bearer stack for each of a plurality of different bearers.