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COMSWARE
2006
IEEE
14 years 2 months ago
VoIP service quality monitoring using active and passive probes
Service providers and enterprises all over the world are rapidly deploying Voice over IP (VoIP) networks because of reduced capital and operational expenditure, and easy creation o...
Shipra Agrawal, P. P. S. Narayan, Jeyashankher Ram...
ICC
2007
IEEE
157views Communications» more  ICC 2007»
14 years 5 months ago
Performance Evaluation of Quality of VoIP Service Over UMTS-UTRAN R99
Release99 of UMTS (Universal Mobile Telecommunication System) network supports conversational services by means of UTRAN (Universal Terrestrial Radio Access Network) Dedicated tran...
Andrea Barbaresi, Andrea Mantovani
WWW
2003
ACM
14 years 11 months ago
Personal Voice Call Assistant: VoiceXML and SIP in a Distributed Environment
In this paper we introduce the architecture of a distributed service platform that integrates speech, web technology and voice-overIP technologies and describe how a specific serv...
Michael Pucher, Julia Tertyshnaya, Florian Wegsche...
ICWS
2004
IEEE
14 years 7 days ago
WSIP - Web Service SIP Endpoint for Converged Multimedia/Multimodal Communication over IP
We present an approach for converged communication services over IP, based on the concept of WSIP (Web Service SIP). In our approach, each WSIP node is both a SIP endpoint that co...
Feng Liu, Wu Chou, Li Li, J. Jenny Li
DIMVA
2011
13 years 2 months ago
Timing Attacks on PIN Input in VoIP Networks (Short Paper)
To access automated voice services, Voice over IP (VoIP) users sometimes are required to provide their Personal Identification Numbers (PIN) for authentication. Therefore when the...
Ge Zhang, Simone Fischer-Hübner