@incollection{, 779F204EB6F5D4AF70EAD798987FA772 , author={{Md. ShahidulIslm} and {}}, journal={{Global Journal of Computer Science and Technology}}, journal={{GJCST}}0975-41720975-435010.34257/gjcst, address={Cambridge, United States}, publisher={Global Journals Organisation}1425356 } @incollection{b0, , title={{Security Analysis of Voice-over-IP Protocols}} , author={{ PGupta } and { VShmatikov }} , booktitle={{Proceedings of the 20th IEEE Computer Security Foundations Symposium (CSFW)}} the 20th IEEE Computer Security Foundations Symposium (CSFW) , year={2007} } @incollection{b1, , title={{Security and Usability Aspects of Man-in-the-Middle Attacks on ZRTP}} , author={{ MPetraschek } and { THoeher } and { OJung } and { HHlavacs } and { WNGanstere }} , journal={{Journal of Universal Computer Science}} 14 5 , year={2008} } @incollection{b2, , title={{SIP Intrusion Detection and Prevention: Recommendations and Prototype Implementation}} , author={{ SNiccolini } and { RGGarroppo } and { SGiordano } and { GRisi } and { SVentura }} , booktitle={{Proceedings of the 1st IEEE Workshop on VoIP Management and Security (VoIP MaSe)}} the 1st IEEE Workshop on VoIP Management and Security (VoIP MaSe) , year={2006} } @incollection{b3, , title={{Pr2-P2PSIP: Privacy Preserving P2P Signaling for VoIP and IM}} , author={{ NFessi } and { HEvans } and { RNiedermayer } and { Holz }} , booktitle={{Proceedings of the 4th Annual ACM Conference on Principles, Systems and Applications of IP Telecommunications (IPTCOMM)}} the 4th Annual ACM Conference on Principles, Systems and Applications of IP Telecommunications (IPTCOMM) , year={2010} } @incollection{b4, , title={{Providing True Endto-End Security in Converged Voice over IP Infrastructures}} , author={{ FPalmieri } and { UFiore }} , journal={{Computers & Security}} 28 , year={2009} } @book{b5, , title={{Toll Fraud Challenges and Prevention in a VoIP Environment (President of Phone Power)}} , author={{ JimMurphy }} , year={2013} } @incollection{b6, , title={{Android driven security in SIP based VoIP systems using ZRTP on GPRS network}} , author={{ MohdSyed Abdul Mueed } and { Salman }} , booktitle={{International Journal of Computer Networks and Wireless Communications (IJCNWC)}} , year={2012} 2 } @book{b7, , author={{ JonathanZar } and { DavidEndler } and { DipakGhosal }} , title={{VoIP Security and Privacy Threat Taxonomy (VIOPSA)}} , year={2005} } @incollection{b8, , title={{A unified architecture for the implementation of security protocols}} , author={{ IbrahimSAbdullah } and { DanielAMenasce }} , booktitle={{the Proc. of Computer Applications in Industry and Engineering (CAINE03)}} Las Vegas, Nevada USA , year={2003} }