Abstract: A technique for monitoring a call associated with a connection established via a Media Gateway node (MGW) is described. The Media Gateway node (MGW) is controlled by a Media Gateway Controller node (MGC). The Media Gateway node (MGW) and the Media Gateway Controller node (MGC) belong to a layered network (LN). A method implementation of this technique comprises the steps of detecting a loss of communication between the Media Gateway Controller node (MGC) and the Media Gateway node (MGW) and logging the loss of communication together with a time stamp of the detected communication loss to be used for determining a charging time of the call.

Abstract: A mobile station in a telecommunication network, comprising a radio access network and a core network, initiates a communication to multiple destination parties. The mobile station assembles and includes the multiple destination parties in a multiple destination party container and inserts this container in a communication initiating message. The mobile station transmits the message via the radio access network to an access node of the core network. The access node retrieves the multiple destination party container from the received message and initializes the communication to multiple destination parties via the core network.