Patent ID: 8824410

Claim:
A method for operating a network that comprises a mobile network and a fixed line network, the mobile network being comprised of a wireless part and a core network part, and the mobile network and the fixed line network configured to cooperate for providing communication between the wireless part and the core network part via the fixed line network, the method comprising: providing information regarding the wireless part via the mobile network to the fixed line network for controlling the communication within the fixed line network, wherein an ICS (IMS (IP Multimedia Subsystem) Centralized Services) ensures that a CS (Circuit Switched) call is anchored in an SCC AS (Service Centralization and Continuity Application Server) in an IMS, wherein, where a PCC is provided within the mobile network, the information is provided via a connection between a PCRF (Policy Charging and Rules Function) of the PCC (Policy Control Charging) of the mobile network and an RACS (Resource Admission Control System) of an RACF (Resource Admission Control Function) of the fixed line network, otherwise where a PCC is not provided within the mobile network, the information is provided via a connection between the SCC AS and the RACS of the RACF of the fixed line network, and wherein the information is encoded in a SETUP Non Access Stratum (NAS) message.