Signalling method and conversion device for telecommunications networks

This invention relates to a signalling method and a conversion device for telecommunications networks. In particular, this invention relates to a signalling method and a conversion device for telecommunications networks in which a multiplicity of subscribers communicate using communications terminals, at least certain of these subscribers being able to register in their home network (H) or in a telecommunications network whose operator has a roaming agreement with the operator of their home network using a first subscriber identification which was assigned to them from the number area of the operator of their home network. A signalling method and conversion device for telecommunications networks, for example mobile networks such as GSM or UMTS networks, wherein at least certain subscribers can register in their home network, or in a telecommunications network having a roaming agreement with the operator of their home network, using a first subscriber identification from the number area of their home operator, certain of these subscribers being assigned a second subscriber identification from the number area of a partner network operator with which these subscribers can register in a visited network with which operator their home network operator does not have a roaming agreement, the signalling traffic concerning subscribers who have been registered in such a visited network with a second subscriber identification number being conducted to the partner network, being filtered there, and being rerouted to their home network, and signalling traffic concerning such subscribers received in said partner network from said home network being rerouted to this said visited network.