more security sensitive session flows over umts or gsm gprs while less sensitive information can be distributed over the less secure wlan implementation or no session flow is allowed to be distributed over wlan the security requirement is preferably included as a divisible or non divisible requirement mutatis mutandis as described in relation to fig2 the preferred embodiment of the invention consequently allocates the most resource efficient access technology considering also particular requirements parameters such as user terminal preferences qos parameters or security level supported by some but not all access technologies the invention applies to both wired and wireless access technologies where traffic can be split over a plurality of access technologies of particular interest however is multiple technology access including wireless access technologies due to the greater difficulties of the wireless medium and the application of different technologies that has evolved and continues to evolve in order to meet the various difficulties of different environments and different uses in a preferred embodiment of the invention it is applied to radio communications i e the access technologies being radio access technologies r a ts when applied to a radio communications system the mta admission control is preferably co located with a radio network controller of the radio communications system admission control of the various individual access technologies is preferably located to a radio network controller or an access point of the radio communications system the invention also applies to other wireless communications than radio communications e g infrared communications and ultrasonic communications whenever there is a plurality of access technologies of communications interest the invention is not intended to be limited only to the embodiments described in detail above changes and modifications may.