A METHOD AND A SYSTEM FOR SIGNALLING BETWEEN A DIGITAL MOBILE COMMUNICATION SYSTEM AND A DATA COMMUNICATION NETWORK

摘要

A method and a system for signalling between a digital mobile communication system and a data communication network is revealed. A user terminal associated with the mobile communication system raises a request for information retrieval from a data terminal in the data communication network and the system carries out steps that comprise recognition of the request for information retrieval, direction of the request to a number retrieval database and forwarding of the request to a conversion database. One preferred embodiment of the invention concerns a GSM system. The number retrieval database FNR has been implemented in such GSM systems. All connections in the system, both speech and non-speech, are connected with the aid of FNR, which forwards a connections request to the HLR mobile switching centre to which the receiving terminal/subscriber is connected.