Fault management for VoIP applications over wireless and wired NGN networks: An operational prospective

This paper shows the practical aspects to be considered in order to face the Fault Management problem in a network deploying VoIP services for both wireless and wired access. The real network analyzed includes all the entities necessary for implementing a plain VoIP service, according to the NGN architecture. We provide the KPI definition, along with a detailed description which refers to the practical experience of a real nation wide network, and their usage within a Fault management framework.