Patent ID: 6785515
Filing Date: 2004-08-31
Classification: H04L,H04M

Abstract:
Method for monitoring telephone calls comprising, in succession, the steps of:a) supplying a useful signal which contains the call information of a telephone call, said call information being an actual conversation and a data set which contains at least one digital subscriber tag to a recording centre, b) storing the call information in the recording centre in the form of digital call data and the data set associated with such call data, c) supplying the data set to a relaying device which is coupled to a fixed network, and is compared there with comparison data sets which each contain at least one comparison tag, d) if the subscriber tag matches the corresponding comparison tag of a selected comparison data set, a communications link is established via a fixed network, between the relaying device and at least one monitoring device which is intended for monitoring the telephone call, e) supplying the call data stored in the recording centre to the relaying device, and f) the monitoring device is supplied by means of the relaying device via the communications link, with a relayed signal which contains the call information.