Method for access authorization in communication network, involves connecting two communications networks, where connections of participants of communication network are guided to other participants across proxy service

摘要

The method involves connecting two communication networks. The connections of the participants of the communication network are guided to other participants across a proxy service (P) of a telephone system (PABX). The communications network comprises the telephone system and the terminals. An independent claim is included for a telephone system with the connections of a proxy service.