The growing scale of Voice over LTE deployments as well as the wide spread of Internet
voice services increase the demand for their user centric service quality monitoring. The …

The increasing number of Voice over LTE deployments and IP-based voice services raise
the demand for their user-centric service quality monitoring. This domain's leading challenge …

IP networks are on a steep slope of innovation that will make them the long-term carrier of all
types of traffic, including voice. However, such networks are not designed to support real …

We present an instrumental approach on how to assess the perceptual quality of voice
transmissions in IP-based communication networks. Our approach is end-to-end and uses …

The need to evaluate voice quality in VoIP (Voice over IP) applications is an important
requirement for technical and commercial reasons. This may involve subjective and/or …

Call quality assessment is of significant importance for adaptive multimedia transmission in
order to support high quality of delivery of multimedia services in current dynamic network …

In today's telecommunications market there is a clear trend to adopt a flexible infrastructure
to minimize costs and facilitate the introduction of new services. Typical examples are …

This paper presents an improvement to an existing VoIP call quality model in the context of
mobile networks, that works on-the-fly and deals with uncertainty. Subjective call quality …

This dissertation addresses real-time communications using Voice-Over-IP (VoIP)
technology, which is nowadays widely used by enterprises and individual users. The focus …

This paper aims on a quality estimation of voice services in converged corporate networks.
Besides the techno-centric Quality of Service (QoS) metrics a research area called Quality of …