VoIP security assessment: methods and tools

VoIP networks are cost efficient solutions for providing voice services and value added voice based services to both public and enterprise level users. The security of VoIP network is of major importance, since malicious usage can lead to major security incidents and associated costs. In this paper we present a security management framework for VoIP. This framework is capable to perform advanced security assessment tasks for such a network. This paper describe our developed tool, highlights some of its key components and presents some of the learned experience while implementing the framework on a internal testbed.