Abstract: The invention proposes a network system comprising a service control device (SEM); and at least one application execution device (AEE); wherein the service control device (SEM) is adapted to receive a service request, to select an appropriate application execution device according to the service request, and to invoke the selected application execution device, and wherein the application execution device (AEE) is adapted to perform the service requested by the service request. The invention also proposes a corresponding network control method. According to the invention, a flexible service architecture is possible.

Abstract: A communication system comprises an IP network offering services to users and an IPT provider network providing call related functions to users. A control protocol message is received and analyzed by a respective serving entity in the IPT provider network. Depending on the analyzing result, call related functions are performed by the respective serving entity. Moreover, a received control protocol message is analyzed by the IP network and, depending on the analyzing result, services are executed by the IP network.

Abstract: The present invention relates to a method and system for providing a service in a communication network. A service script is used to control a service execution functional unit to execute the service, wherein an execution priority is allocated to the service script based on the kind of service. Furthermore, a service logic of the service may be provided at a service execution functional unit, and the service script may comprise a service description of the service. The service execution functional unit is then controlled based on the service description to execute the service by using the service logic. Thus, the service script does not contain the service logic, and a flexible service script concept can be provided. Moreover, the signaling traffic can be reduced since the operator does not have to update service scripts for a large amount of subscribers.