Patent ID: 7363036

Claim:
A method for registering a new subscriber in a radio system having a central system and a plurality of subscribers, said central system and said subscribers comprise a transmission and a receiving device, said subscribers can establish direct radio contact with the central system or indirect contact via one or more other subscribers as routers, said method for registering comprising the following steps: a new subscriber sending a search signal to all subscribers that can be reached and selecting a first router from subscribers that respond; the new subscriber sending a registration request to the first router in the form of a message, said message contains a provisional address and an identifier of the central system assigned to the first router; after the registration request from the first router has been forwarded to the central system, the central system deciding whether to accept or reject the registration request, and if accepted, the central system sending a response via the first router which contains a subscriber number and a system identifier which is accepted and stored by the new subscriber, wherein if the registration request is rejected by the central system, the new subscriber selecting another first router of another radio cell and sending a registration request via this router to its central system, and wherein the new subscriber, after a successful registration, sending out a second search signal to all subscribers located within its radio range and subsequently informing the central system about all subscribers that can be reached in its radio range of radio system.