The purpose of this study is to identify the key security issues within the context of software based VoIP (Voice over Internet Protocol) which are engaged in the process of data exchange on the converged networks. There is no one single solution for VoIP security; it is all depended on the type of customers, existing IT environment and carriers. In order to narrow down the focus we will concentrate on the SMEs (Small and Medium size Enterprises). This paper focuses on the key similarities and differences between softphone and hardphone, analyses VoIP security protocol and proposed a model for softphone security is presented.
['Dannan Lin', 'Charles A. Shoniregun', 'Galyna A. Akmayeva']
The softphone security