Interworking between services in telecommunications network

The invention relates to interworking between distributed services in a telecommunications network, especially in an intelligent network. The invention concerns interworking between distributed services in a telecommunications network, especially in an intelligent network. The invention is based on the idea that at least one new Interworking Point is introduced to the call handling model and with the aid of this Interworking Point the interworking between the distributed services is implemented. The Interworking Point can be defined as either a point where instructions received from one service program are reported to interested service programs or as a point where a service to be carried out by the responsible service program is requested by some other service program. The interworking points are armed by the service programs, and the service programs which armed the interworking point are informed of the encounter with an interworking point.