Patent ID: 6798770
Filing Date: 2004-09-28
Classification: H04M

Abstract:
A method for handling telephone calls using an Internet between a first interworking unit that provides access between a telecommunications network of a calling subscriber and the Internet and a second interworking unit relating to a called subscriber, comprising:operating at least a first telecommunications network to which the calling subscriber and the first and second interworking units belong, the first telecommunications network and first and second interworking units having a common provider which provides operation of the telecommunications network and makes available the first and second interworking units, such that at least a call connects to the first interworking unit without connecting outside the telecommunications network; accessing by the calling subscriber the first interworking unit for a call and passing on a dialed telephone number of the called subscriber to the first interworking unit as a function of the call being identified as an Internet telephone call and as a result of an access authorization check; and commencing charging for use of the first telecommunications network and of the Internet together after a connection is made, wherein the call from the calling subscriber and a related connection between the first interworking unit and the internet is evaluated for charging purposes by the same network, wherein an access check to the first interworking unit relating the calling subscriber for setting up a telephone link is carried out in a first telephone exchange to whose exchange area the first interworking unit belongs, the first interworking unit being handled as a member of a closed user group to which access by the calling subscriber is possible only by dialing an access code, this access code being converted, after an authorization check, into a destination number of the first interworking unit.