Abstract
Time, day, location and instantaneous network conditions largely dictate the quality of Voice over IP calls. In this paper we present the results of over 18000 VoIP measurements, taken from nine sites connected in a full-mesh configuration. We measure the quality of the routes on a hourly basis by transmitting a pre-recorded call between a pair of sites. We repeat the procedure for all nine sites during the one hour interval. Based on the obtained jitter, delay and loss values as defined in RFC 1889 (RTP) we conclude that the VoIP quality is acceptable for all but one of the nine sites we tested. We also conclude that VoIP quality has improved marginally since we last conducted a similar study in 1998.
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References
Bolot, J., Crepin, H., Garcia, A.: Analysis of audio packet loss in the internet. In: Little, T.D.C., Gusella, R. (eds.) NOSSDAV 1995. LNCS, vol. 1018, pp. 163–174. Springer, Heidelberg (1995)
Cole, R.G., Rosenbluth, J.H.: Voice over IP Performance Monitoring. ACM Computer Communication Review (2002)
Hagsand, O., Hansson, K., Marsh, I.: Measuring Internet Telephone Quality: Where are we today? In. In: Proceedings of the IEEE Conference on Global Communications (GLOBECOM), Rio, Brazil. IEEE, Los Alamitos (November 1999)
Hagsand, O., Marsh, I., Hanson, K.: Sicsophone: A Low-delay Internet Telephony Tool. In: 29th Euromicro Conference, Belek, Turkey. IEEE, Los Alamitos (September 2003)
ITU-T Recommendation G.107. The E-Model, a computational model for use in transmission planning (December 1998)
Kitawaki, N., Kurita, T., Itoh, K.: Effects of Delay on Speech Quality. NTT Review 3(5), 88–94 (1991)
Lines, B.M., Sun, L.F., Wade, G., Ifeachor, E.C.: Impact of Packet Loss Location on Perceived Speech Quality. In: Proceedings of 2nd IP-Telephony Workshop (IPTEL 2001), April 2001, pp. 114–122. Columbia University, New York (2001)
Li, F.: Measurements of Voice over IP Quality. Master’s thesis, KTH, Royal Institute of Technology, Sweden (2002)
Lin, D.: Real-time voice transmissions over the Internet. Master’s thesis, Univ. of Illinois at Urbana-Champaign (1999)
Maxemchuk, N.F., Lo, S.: Measurement and interpretation of voice traffic on the Internet. In: Conference Record of the International Conference on Communications (ICC), Montreal, Canada (June 1997)
ITU-T Recommendation G.114. General Characteristics of International Telephone Connections and International Telephone Circuits: One-Way Transmission Time (February 1998)
Schulzrinne, H., Casner, S., Frederick, R., Jacobson, V.: RTP: A Transport Protocol for Real-Time Applications. RFC 1889, Internet Engineering Task Force (January 1996), http://www.rfc-editor.org/rfc/rfc1889.txt
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Marsh, I., Li, F., Karlsson, G. (2003). Wide Area Measurements of Voice over IP Quality. In: Karlsson, G., Smirnov, M.I. (eds) Quality for All. QofIS 2003. Lecture Notes in Computer Science, vol 2811. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45188-4_10
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DOI: https://doi.org/10.1007/978-3-540-45188-4_10
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-20192-2
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