Patent ID: 9226148
Filing Date: 2015-12-29
Classification: H04L,H04M,H04W

Abstract:
1. A method for IP-based communication between an IP node and a second terminal, the IP node being authenticated in an IP-based communication network and being registered in a location databank, with a connection between the IP-based communication network and a publicly switched telephony network or mobile radio network being created and administered by a central connection administration module of the IP-based communication network for IP-based voice telephony or image telephony, the central connection administration module including a Session Initiation Protocol (SIP) registration module, a monitoring module, and a gateway module, the method comprising: transmitting a registration request, including registration data of the IP node and authentication data of an identification module of the IP node, from the IP node to the SIP registration module of the central connection administration module, the registration data including data to register with the IP-based voice telephony or image telephony, the registration data and the authentication data being of the same IP node and being transmitted from the same IP node, and the IP node being authenticated in the IP-based communication network and being registered in the location databank; extracting the authentication data from the registration request and passing the authentication data to an authentication module via the SIP registration module; authenticating the IP node based on the authentication data by the authentication module and by a home location register in a GSM network, the authenticating being performed by the authentication module in the IP-based communication network directly accessing the home location register in the GSM network; carrying out a location update, when the authentication of the IP node is successful, in the home location register; transmitting localization data to the SIP registration module; storing the localization data of the IP node in a location databank via the SIP registration module; and passing corresponding data to the identification module of the IP node, with the IP node being released for the IP-based voice telephony or image telephony.