Simulation of an advanced mobile communication network

In this paper we describe a simulation/emulation software which can simulate the call flows from a mobile originated c all a nd a mobile terminated c all scenario in a Release 4 UMTS mobile communication network. This software also tries to emulate the Mc interface that resides between the Mobile Switching Center Server and the Circuit Switched Media Gateway. The simulator is capable to send real H.248 and RANAP prerecorded messages to a loopback network adapter t hat c an be monitored a nd the messages can be decoded by a protocol analyzer software like Wireshark. The result is a simulation environment which can be used for teaching the procedures, messages and call flows which appear in the UMTS Release 4 network in case of call establishment, call processing and call control.