 to music via the mobile phone: Connect via the WAP gateway to the wireless Internet portal and select your favourite music site. Click on the tune you want to hear and the tune is streamed to the phone. Whilst listening, the mobile advertiser sends a message saying that you have the oppor- tunity to purchase the CD containing this song at a discount price if you respond within 10 minutes. Click on the 'buy' link and connect to the CD store's page. You buy the CD via the mobile e-pay secure m-commerce platform. Finally you request to have the payment sent to your mobile phone bill. The operator sends the payment transaction data to its partner bank/credit card agency, which clears the payment to the CD store. Understanding Changing Telecommunications - Building a Successful Telecom Business Other network (CPE, Terminal If any) Service network with servers server Applications Service enablers Network control and intelligence Access Core connectivity Connectivity User information flow Figure 9.14 Federated applications The user should not be aware of the products and processes involved in this complex series of transactions. But achieving this is not easy. This demonstrates the power of the service network concept where all applications share common resources and interwork smoothly with each other. 9.11.2 MORNING NEWS APPLICATION As another example, we take a typical push service, a subscription-based news delivery using WAP technology (see Figure 9.15). The news is customized for the user by using a number of areas of interest as a sorting parameter. The service is delivered cheaper if the user has accepted to receive local Morning news application with its service logic Application support servers Management CAMEL Bearers system First time registration Logon to home Environment Self registration to Morning News service Updating user "Morning News" Internet Service data UTRAN Figure 9.15 The morning news application 1: personalized newspaper Service Network adverts ('Check out the extra discounts at Arlanda tax fr