today, optimal performance and cost advantages of using internet telephony are obvious. despite current standardized techniques, voice transferring through protocol (voip) has lower security than traditional telephony. one of the most important security issues which should be noticed in using voip is end -to-end user2 identity, i.e. when  there is a connection between user a and b, user a shoul...

During the recent Internet stock bubble, articles in the trade press frequently said that, in the near future, telephone traffic would be just another application running over the Internet. Such statements gloss over many engineering details that preclude voice from being just another Internet application. This paper deals with the technical aspects of implementing voice over Internet protocol ...

Voice over IP (VoIP) is a family of technologies, methodologies, communication protocols, and transmission techniques for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms frequently encountered and often used synonymously with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband tele...

The use of Voice over Wireless Local Area Network is seeing a meteoric rise in popularity as result its simplicity, non-intrusiveness, and cheap cost implementation, well low maintenance, universal coverage, fundamental roaming capabilities. Nevertheless, deploying Internet Protocol (VoIP) (WLAN) challenging task for many network managers, architects, planners, designers, engineers. Because thi...

Voice over Internet Protocol is a technology of transmitting voice on the Internet. Human voice is digitized, encoded, and transmitted on the Internet in the form of voice packets. These packets are received at the other end, decoded and converted back to analog signal. Loss and delay of voice packets result in the degradation of voice quality, since voice is a real-time application. Consecutiv...

For transporting voice data with silence suppression over the Internet, the problem of jitter introduced from the network often renders the speech unintelligible. It is thus essential to offer intramedia synchronization to remove jitter while retaining minimal playout delay. We have previously proposed a neural– network–based intra–voice synchronization mechanism, called Intelligent Voice Smoot...

This research identi es the problems encountered in transmitting voice over the Internet and proposes approaches to solve these problems. The current Internet is not very suitable for transmitting real-time data because its underlying protocols and switches were only engineered to transmit non-real time data. The problems posed by voice over the Internet are studied by conducting a series of ex...