 There is also a logical interface to other networks. See Figure 9.11. In the larger perspective the service network is located on top of the control network, but the application could also be remote and connected to the service platform by means of the Internet. Also, the connection from the service network to the connectivity network can be shown in a similar way as in Figure 9.11. See the bearer 'pipes' in Figure 9.12, which shows a distant application, supported by home service network resource management and application support. For an overview see Figure 9.13. Personal services environment management (CPE) Service network management (CME) Application(s) IP network server Common directory (PSTN, ISDN Enablers Internet Figure 9.11 Major functions in a service network Understanding Changing Telecommunications - Building a Successful Telecom Business Remote application Application support servers Open API Management Bearers system Internet ISP PoP Access Figure 9.12 The service network cooperates with, and supports, remote applications Business Application servers Applications Service support and applications: Appl. Appl. network systems/ Partners server server Appl. Appl. Appl. server server management 3rd parties server Monitoring manager IP-Infrastructure/ backbone Integration PSE Management manager Billing Portal Directory engine Configuration system user profile manager Application support Charging Notification Security Database Geonavigational servers support support support directory GW support (ASuS) Service capability HLR-GW CAMEL CAS = customer administration servers (SCS) and system other gateways Bearer CCN = cost control node Access Core network Internet Access network Figure 9.13 Service network overview, example 9.10 THE (IP) SERVICE NETWORK SUPPORT ENTITIES The (IP) service network support entities contain a basic set of infrastructure services that can be utilized by the service network. The services are performed by infrastructure servers, such as: Service Network RADIUS - a RADIUS server perf