Telecommunications services engineering: definitions, architectures, and tools
The telecommunications handbook
Integrating visualization into event monitoring and analysis in distributed systems management
CASCON '95 Proceedings of the 1995 conference of the Centre for Advanced Studies on Collaborative research
An E-Model Implementation for Speech Quality Evaluation in VoIP Systems
ISCC '05 Proceedings of the 10th IEEE Symposium on Computers and Communications
Delegated agents for network management
IEEE Communications Magazine
A Novel real time voice quality testing model for VoIP ambience environment in wireless LAN
COMSNETS'09 Proceedings of the First international conference on COMmunication Systems And NETworks
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Monitoring speech quality in Voice over IP (VoIP) networks is important to ensure a minimal acceptable level of speech quality for IP calls running through a managed network. Information such as packet loss, codec type, jitter, end-to-end delay and overall speech quality enables the network manager to verify and accurately tune parameters in order to adjust network problems. The present article proposes the deployment of a monitoring architecture that collects, stores and displays speech quality information about concluded voice calls. This architecture is based on our proposed MIB (Management Information Base) VOIPQOS, deployed for speech quality monitoring purposes. Currently, the architecture is totally implemented, but under adjustment and validation tests. In the future, the VOIPQOS MIB can be expanded to automatically analyze collected data and control VoIP clients and network parameters for tuning the overall speech quality of ongoing calls.