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Publications by Type: Conference and Workshop Publications

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Assessment of VoIP Quality over Access Networks
Zitatschlüssel MJS-AVOIPAN-05
Autor Mehmood, Amir and Jadoon, Tariq M. and Sheikh, Noor M.
Buchtitel ICI'05: Proceedings of The First IEEE and IFIP International Conference in Central Asia on Internet
Seiten 26–29
Jahr 2005
ISBN 0-7803-9179-9
DOI http://dx.doi.org/10.1109/CANET.2005.1598195
Ort Bishkek, Kyrgyz Republic
Monat September
Zusammenfassung This paper assesses VoIP quality over access networks in Pakistan using a delay jitter measurement methodology for evaluating the perceptual quality of voice calls using the ITU-T G.107 speech quality E-model. Passive measurements for voice calls in the presence of background Internet data traffic for G.723.1 and G.729a codecs are carried out using a non-intrusive parametric model. The R-factor and resultant Mean Opinion Scores (MOS) were calculated at different link loads and congestion hot spots were identified. The study highlights the inadequacy of access networks for handling VoIP traffic at current in Pakistan and suggests alleviating congestion by increasing capacity in access networks
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