Helmut Rau

Process and system for automatic routing

Mobility administration with connections between public mobile radio network and private network

Verfahren und Anordnung zur Anrufumlenkung

Accessibility management of a terminal in a mobile radio network and in a intelligent network.

Establishing a telecommunications connection to a user, to whom multiple possible destinations are associated

Telephone switching system and method

Privately used radio supply range administration method

Method and system for processing supplementary services usable in a private network and a mobile communication network

Connect path steering method for public mobile communication network

Method for handling calls in pcs communication networks