Abstract: A telecommunication system comprising an existing node with at least an existing switch with physical inlets and a local address space for addressing said physical inlets. At least one additional switch is added to the system, one of said additional switches residing in node that is external to the existing node. The additional switch or switches in the external node have also physical inlets and a local address space or spaces for addressing its switch inlets. A global address space is created which comprises at least the local address spaces of the existing switch and said one additional switch in the external node. The existing node has a connection handler for controlling the existing switch in the existing node and said one additional switch in the external node using the global address space (FIG. 2).

Abstract: For distributive services in telecommunications networks, and in particular methods for establishing point-to-multipoint connections and multipoint-to-point connections as well as methods of releasing these types of connections. Program distribution to several subscribers uses network resources in common along common call routes. A list of potential program distribution points is created and a running index is associated with each one of the distribution points. Before a connection is set up to a subscriber the list is examined and a distribution point is selected from which a point-to-point connection is set up to the subscriber. The running index is stepped up. The running index of a distribution point is stepped down during release of a connection and is examined with release of a call route section.

Abstract: User terminals are connected to a telecommunication system. The telecommunication system includes a control system for the control, such as set-up, release and modification, of connections between the user terminals. A large portion of functions are common for control of dynamical as well as semi-permanent connections. Control of a connection can be initiated from any of the user terminals to which the connection relates, or from other user terminals. Control data for the connections can be stored in different types of storage resources in the control system, the different types of storage resources having different degrees of reliability.

Abstract: A resource model for modeling the resources of a telecommunication network that uses a number of different switching technologies. The resource model comprises three layers, a network layer, a node layer and a component layer, each layer comprising resource objects. The resource objects of the network layer are encapsulated to applications which use the network. The resource objects of the node layer are encapsulated to the resource objects of the network layer and the resource objects at the component layer are encapsulated to the resource objects of the node layer. The resource model comprises connection handling function for setting up connections in the telecommunication network. The functions are divided into function components.

Abstract: A method of dynamic resource allocation in a stratified network structure having a dynamically switched first stratum network and at least a second stratum network underlying the first overlying stratum network. At least a first route in the first stratum is provided with a first relation which points out two access points in the second stratum. A connection between the access points in the second stratum network is established and includes a second number of resources generally referred to as an infrastructure. The infrastructure is finally assigned to the first route.