Järjestely tietoliikenneverkkojen yhdistämiseksi

摘要

The invention relates to an interconnection between different types of communications networks. A first core network element is connected to a first access network by means of a first protocol stack used between the first core network element and a network element in the first access network. A second core network element is connected to a second access network by means of a second protocol stack used between the second core network element and a network element in the second access network. The first core network element is arranged to support and use at least parts of the second protocol stack towards the second core network element, and the second core network element is adapted to extend the parts of the second protocol stack towards the first core network element.