Results 1 to 10 of about 541,454 (217)
Security Risks in IP Telephony
Advances in Electrical and Electronic Engineering, 2010 This paper deals with VoIP communication security and various techniques of VoIP attacks. We divided these threats in several categories according to their specific behaviour and their impact on the affected system.
Filip Rezac, Miroslav Voznak
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Applied Multiprotocol Routing in IP Telephony
Advances in Electrical and Electronic Engineering, 2010 The aim of the project was to create a multi-protocol system using SIP, H.323 and MGCP standards, which would ensure routing to various types of VoIP networks. The priority was to provide multi-protocol support to SIP and H.323 signalling and the support
Miroslav Voznak, Filip Rezac, Jan Rozhon
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The Reliability Analysis for Corporative IP-Telephony System with Functional Safety
Безопасность информационных технологий, 2011 The article is devoted to issues of reliability modeling for fault tolerant corporative IP-telephony system. Two reliability models are presented based on the minimal paths and minimal cuts technique. Two reliability models are proposed based on the link
A. E. Alexandrovich +2 more
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Empirical Data from Mobile and IP Telephony
Journal of Communications Software and Systems, 2008 Over the recent years enormous changes in the telecommunication services, techniques, regulations and markets have taken place. However, even with many new exciting services the telephony service is still popular.
Poul E. Heegaard
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Telephony Over IP: A QoS Measurement-Based End to End Control Algorithm [PDF]
Journal of Systemics, Cybernetics and Informatics, 2004 This paper presents a method for admitting voice calls in Telephony over IP (ToIP) scenarios. This method, called QoS-Weighted CAC, aims to guarantee Quality of Service to telephony applications.
Luigi Alcuri, Francesco Saitta
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Diffusion of IP Telephony in Undergraduate Private Colleges [PDF]
Journal of Systemics, Cybernetics and Informatics, 2007 Over the summer of 2000 Menlo College implemented enterprise wide Internet Protocol (IP) Telephony (Voice over Internet Protocol [VoIP]). More than five years have passed, and analysts are predicting that in the near future the only available Private ...
Patrick C. Olson, PhD +3 more
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Information and Telecommunication Sciences, 2020 Background. To date, the effectiveness of the use of virtualization technologies for the deployment of the organization's infrastructure of any complexity is beyond doubt.
Oleksandr Romanov +3 more
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IP Telephony: Comparison of Subjective Assessment Methods for Voice Quality Evaluation
Walailak Journal of Science and Technology, 2013 One problem that often occurs after installing/implementing an IP telephony system is voice quality. Although there are objective measurement tools for voice quality evaluation, the prices of these are very expensive.
Therdpong DAENGSI +3 more
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Removing Ambiguities of IP Telephony Traffic Using Protocol Scrubbers [PDF]
Journal of Systemics, Cybernetics and Informatics, 2012 Network intrusion detection systems (NIDSs) face the serious challenge of attacks such as insertion and evasion attacks that are caused by ambiguous network traffic.
Bazara I. A. Barry
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New opportunities for studying digital information transmission technologies using Cisco equipment [PDF]
E3S Web of ConferencesThe article describes a methodology for studying network technologies using Cisco equipment to create a model of a digital three-level information transmission network with further analysis of the network state and network traffic research.
Prosviryakova L. V. +2 more
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