whichever role is most efficient for the network. This reduces the load on servers and allows them to perform specialized services (such as mail-list generation, billing, etc.) more effectively. Person-to-content communication was given a real push by Internet WWW services at the beginning of the 1990s. Person to person is used to discriminate between P2C and the previous traditional situation with exclusively person to person. Content can be split into media and information. Translated to mobile communication it becomes 'mobile media' and 'wireless Internet'. 3.8 ADAPTATION OF THE BASIC TRIANGLE AND FPs TO THE CONVERGED MULTI-SERVICE NETWORK The new functions on top of bit pipe provision will also require additions to FPs. The functions are more or less installed in the user-service interface. This means that the end-user perception must be examined. The users have a broad scope of needs and demands as shown in Chapter 2. The success factors used in this book justify choosing the user-network interface as a focal point. The book focuses on three issues in this interface: services, security and QoS. The service area is introduced in this chapter, security in Chapter 6 and QoS in Chapter 7. Chapter 5 is the main chapter on services. In line with Figure 3.25 the basic model must be complemented with a server part for content provision and similar server tasks. It could also be another peer or a mailbox according to Figure 3.24. The convergence of telecom and datacom leads (in the optimal solution) to the creation of one single network replacing all vertical networks after a long transitional period. The convergence with the media industry is shown by means of content provision and the additional functional area on top of the network. The new model represents a person-to- content relationship, as opposed to the previous person-to-person model. A service layer adds to the fundamental plans. See Figure 3.26. In order to meet the user demands many devices and servers have been developed. Application developers design a