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» Secure IP Telephony using Multi-layered Protection
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NDSS
2003
IEEE
13 years 10 months ago
Secure IP Telephony using Multi-layered Protection
This paper presents the design and analysis of a multilayer protection scheme against denial-of-service (DoS) attacks in IP telephony enabled enterprise networks. While there are ...
Brennen Reynolds, Dipak Ghosal
CMS
2001
119views Communications» more  CMS 2001»
13 years 6 months ago
Vulnerabilities and Security Limitations of current IP Telephony Systems
Abstract Within the traditional telephone system a certain level of quality and security has been established over the years. If we try to use IP Telephony systems as a core part o...
Ralf Ackermann, Markus Schumacher, Utz Roedig, Ral...
CNSM
2010
13 years 1 months ago
Risk management in VoIP infrastructures using support vector machines
Telephony over IP is exposed to multiple security threats. Conventional protection mechanisms do not fit into the highly dynamic, open and large-scale settings of VoIP infrastructu...
Mohamed Nassar, Oussema Dabbebi, Remi Badonnel, Ol...
ICMB
2005
IEEE
98views Business» more  ICMB 2005»
13 years 10 months ago
Security Issues in SIP Signaling in Wireless Networks and Services
SIP appears to be a powerful and useful signaling protocol supporting mobility for wireless IP networks but it has inherent weaknesses and dangers. This paper is a study on the se...
Elthea T. Lakay, Johnson I. Agbinya
CEAS
2008
Springer
13 years 7 months ago
Analysis of Spectral Parameters of Audio Signals for the Identification of Spam Over IP Telephony
A method is presented which analyses the audio speech data of voice calls and calculates an "acoustic fingerprint". The audio data of the voice calls are compared with e...
Christoph Pörschmann, Heiko Knospe