Patent ID: 8249054

Claim:
An Access Gateway Node (MAGCF) adapted to invoke a service in a packet-based multimedia system for a user with a circuit-switched controlled user's terminal located in a circuit-switched controlled domain and having an ongoing call wherein said node comprises: a microprocessor unit coupled to a memory unit, wherein the microprocessor is operable to run instruction sets stored in the memory unit for executing: a circuit-switched logic (CS logic) adapted to receive and to send a service invocation information related to the ongoing call from or to the circuit switched controlled domain; a packet-based multimedia logic (Packet logic) adapted to receive and to send a packet-based service invocation information from or to the packet based multimedia system; and, a service invocation logic (Invoc. logic) adapted to identify a packet-based multimedia service according to the received service invocation information from the circuit-switched logic or according to the received packet-based service invocation information from the packet-based multimedia logic and handle a corresponding packet-based multimedia service execution in respect to the identified packet based multimedia service on behalf of the user by using one or more parameters, including status of the ongoing call, the one or more parameters being stored and administered by the MAGCF.