-This paper presents a narrative key generation scheme using biometric methodology for providing high security over the internet applications such as VoIP technology. The present work deals with modern computing systems security issues, focusing on biometric based asymmetric key generation process. The term VoIP refers-“voice over internet protocol (IP)” in which the “voice” to be transmitted u...

How well can the Internet serve as a network carrying voice calls? To answer that question, we have been running a web site called TestYourVoIP where users can run tests of VoIP Quality from their PC. In this paper we describe how TestYourVoIP operates, the kinds of tests it performs, and the results we have found from those tests. Our findings indicate that while many users will get acceptable...

In our modern society telephony has developed to an omnipresent service. People are available at anytime and anywhere. Furthermore the Internet has emerged to an important communication medium. These facts and the raising availability of broadband internet access has led to the fusion of these two services. Voice over IP or short VoIP is the keyword, that describes this combination. The advanta...

Internet telephony (or VoIP) has been viewed in two different ways. First, some hold that it is largely similar to earlier architectural changes in the PSTN, continuing the transition from analog to circuit-switched digital and now to packet-switched transmission. Others believe that Internet telephony is primarily another Internet application that happens to interconnect with a “legacy” networ...

Voice over Internet Protocol (VoIP) is being widely deployed to offer users low-cost alternatives for long-distance and international telephone calls. However, for users who are accustomed to the high-quality sound offered by traditional Public Switched Telephone Network (PSTN) service, VoIP voice quality often pales in comparison. Voice quality in VoIP networks widely varies as a result of sev...

The voice quality in Internet Protocol (IP) telephony is significantly influenced by various factors, including delay, delay variation, bandwidth congestion and the distribution of packet loss. Hence, the performance of IP telephony systems is highly dependent on understanding the contribution of these factors to the voice quality. This paper deals about a method for classifying Voice over IP (...

Voice over IP and other jitter sensitive applications have raised the demand for Quality of Service guarantees in the Internet. The traffic must be classified and prioritized according to application specific needs. The Differentiated Services framework provides means for stateless low-cost classification. This paper summarizes the IETF's DiffServ Internet Draft.

The Security threats to current circuit switched networks dedicated to a single voice application such as the Public Switched Telephone Network (PSTN) are considered minimal. However, in open environments such as the Internet, conducting an attack on voice applications such as Voice over IP (VoIP) is much simpler. This is because VoIP services such as Session Initiation Protocol (SIP) are using...

An increasing number of applications are using the Internet for voice transmission, and hence there is a growing demand for the Internet phone. However, the Internet was not originally designed for such isochronous trafic, and it is not clear that it is fully capable of providing the desired Quality of Service (QoS) for this application. In this paper we describe a number of QoS parameters to m...

An increasing number of applications are using the Internet for voice transmission, and hence there is a growing demand for the Internet phone. However, the Internet was not originally designed for such isochronous traffic, and it is not clear that it is fully capable of providing the desired Quality of Service (QoS) for this application. In this paper we describe a number of QoS parameters to ...