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Design of active and passive probes for VoIP service quality monitoring

机译：VoIP服务质量监测有源和无源探头的设计

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摘要

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 of new services. Voice traffic has stringement requirements on the quality of service, like strict delay and loss requirements, and 99.999% network availability. However, IP networks have not been designed to easily meet the above requirements. Thus, service providers need service quality management tools that can proactively detect and mitigate service quality degradation of VoIP traffic. In this paper, we present active and passive probes that enable service providers to detect service impairments. We use the probes to compute the network parameters (delay, loss and jitter) that can be used to compute the call quality as a Mean Opinion Score using a voice quality metric, E-model. These tools can be used by service providers and enterprises to identify network impairments that cause service quality degradation and take corrective measures in real time so that the impact on the degradation perceived by end-users is minimal.
机译：由于资本和运营支出减少，服务提供商和世界各地的企业正在迅速部署IP（VoIP）网络的语音，并且容易创建新服务。语音流量对服务质量的严格要求，如严格的延迟和损耗要求，网络可用性99.999％。但是，IP网络尚未设计以容易满足上述要求。因此，服务提供商需要服务质量管理工具，可以主动地检测和减轻VoIP流量的服务质量退化。在本文中，我们提供了激活和被动探针，使服务提供商能够检测服务障碍。我们使用探针计算可用于计算呼叫质量的网络参数（延迟，丢失和抖动）作为使用语音质量度量，电子模型来计算呼叫质量。这些工具可以由服务提供商和企业使用，以确定导致服务质量退化的网络损伤，并实时采取纠正措施，以便对最终用户感知的降级的影响最小。

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