Method and service providing means for providing services in a telecommunication network

Abstract

When a mobile station (MS) roams from a first telecommunication network (HPLMN) to a second telecommunication network (VPLMN) some of the features of the services to which the subscriber has subscribed to in the first telecommunication network (HPLMN) are differently implemented in the second network (VPLMN). According to the invention, the subscriber data and/or service data of services or of features of these services which are not supported in the second network (VPLMN) are converted by a conversion means (CM) of a service providing means (ASPM) into a format for a service which is supported in the second network (MSC/VLR′). Preferably, a dynamic updating and conversion can be performed such that the respective data is converted whenever it changes. Functionalities provided by a specific service supported differently in the second network will be provided by a service or a feature of a service which is available in the second network. Thus, the mobile subscriber can use at least some of the functions available to him in the first network also in the second network to which he has roamed. The data with the converted format can also be forwarded to a switching means (GMSC′) of an interrogating network (IPLMN) or to a switching means (GMSC) of said first network (HPLMN) form which a terminating call is to be routed to said mobile station in said second network (VPLMN).