Abstract: Method for providing a messaging service, wherein a user is subscribed to a plurality of telecommunications services, which services are accessed by the user using one or more access devices (25, 26, 30, 31, 35, 37, 39). These services may comprise IP-based services and the access devices may comprise a UMTS (26) or a TV set-top box (39). Operation of the services is enabled by triggered service-related events, and a trigger of one of the service-related events is received by a server (13). The server (13) sends a message to at least one of the access devices (25, 26, 30, 31, 35, 37, 39) of the user upon receiving of the trigger. The method comprises a step of detecting which of the access devices (25, 26, 30, 31, 35, 37, 39) is used regularly by the user in dependence of an operational mode and operational capabilities of each of the access devices (25, 26, 30, 31, 35, 37, 39) and in dependence of preferences of the user.

Abstract: This invention relates to switching and operational support systems in the area of general telecommunications, and more particularly, to a new type of telecommunications data processing arrangement, and to a new type of solution for setting up a telecommunications data processing arrangement. The solution according to the invention can be applied for example in design, development and implementation of new data processing applications.