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 ...

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...