Towards New Security Framework for Voice over IP

Since the invention of the first telephone by Alexander Graham Bell in 1869, network telephony technology did not stop evolving: from circuit switching to packet switching, from fixed network to wireless network. Several new architectures were created which combines the transport of voice, data and image in the same data network. The nature of these open networks has an impact on the voice in terms of security. This yields to the imminent need to secure voice communications while insuring a good quality of service to the voice as well infixed, wireless and IP networks. Different security solutions are proposed for the data. But partial even incomplete solutions are proposed for the voice. New security architecture and its accompanying security protocol are defined. This paper reviews the newly defined security schema and presents some results of implementation within a SIP VOIP environment