Comparative analysis on security techniques in VoIP environment

Abstract

VoIP is technology for transmitting voice and data over IP for communication. It has various benefits such as, voice messaging, calling, video messaging as well as video conferencing with file sharing. VoIP is better than Public Switched Telephone Network (PSTN) and cellular network. We can see all the services in VoIP based application such as Skype, Google talk. Due to the file sharing and information transformation in VoIP, there are more chances to loss valuable data information. For that the security provisions must be there. To prevent from such problem there are various techniques designed. In this research paper we study that various techniques proposed for security in VoIP environment.