A set of quality metrics for the evaluation of voice termination services
Paper
Paper/Presentation Title | A set of quality metrics for the evaluation of voice termination services |
---|---|
Presentation Type | Paper |
Authors | Chan, Ka C. (Author), Zhou, Xujuan (Author), Gururajan, Raj (Author) and Barua, Prabal (Author) |
Journal or Proceedings Title | Proceedings of the 5th International Conference on Behavioral, Economic, and Socio-Cultural Computing (BESC 2018) |
Number of Pages | 6 |
Year | 2018 |
Place of Publication | Los Alamitos, CA, United States |
ISBN | 9781728102078 |
Digital Object Identifier (DOI) | https://doi.org/10.1109/BESC.2018.00036 |
Web Address (URL) of Paper | https://ieeexplore.ieee.org/document/8697324 |
Conference/Event | 5th International Conference on Behavioral, Economic, and Socio-Cultural Computing (BESC 2018) |
Event Details | 5th International Conference on Behavioral, Economic, and Socio-Cultural Computing (BESC 2018) Parent International Conference on Behavioral, Economic and Socio-cultural Computing (BESC) Event Date 12 to end of 14 Nov 2018 Event Location Kaohsiung, Taiwan |
Abstract | Least cost routing is a common practice in the telecommunications industry for international and national telephone voice minutes transactions, including buying, selling, and bilateral swapping agreements. A wholesale voice terminator purchases voice minutes from multiple suppliers and resells to its customers. Voice terminators combine and mix routes supplied by multiple providers for the purposes of increasing capacity and/or maximising profitability. However, this practice may lead to degradation of voice quality due to route inconsistency. To protect trade secrets, voice providers usually do not disclose their upstream providers or route mix details; and therefore, it is difficult for downstream providers to detect quality issues. Some players even manipulate routes by injection tricks such as false ringtone and delayed disconnection in order to produce better quality statistics to mislead the buyers. Traditional quality metrics such as ACD and ASR are not sufficient in detecting these tricks. This paper proposes to use a suite of quality measures to detect quality issues and hidden tricks. The suite includes two metrics for benchmarking and two metrics for inequality comparison. For benchmarking, we propose to use the Q-Q plot and K-S test to test if the quality of the purchased route is the same as that of a known baseline route supplied by a reputable provider. For inequality comparison, we propose to use the Lorenz curve and Gini coefficient, mainly to detect issues that come with mixing routes. |
Keywords | voice quality, voice termination, A-Z termination,least cost routing, Q-Q plot, Kolmogorov-Smirnov test,Lorenz curve, Gini coefficient |
ANZSRC Field of Research 2020 | 469999. Other information and computing sciences not elsewhere classified |
Public Notes | © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Byline Affiliations | School of Management and Enterprise |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q5141/a-set-of-quality-metrics-for-the-evaluation-of-voice-termination-services
311
total views13
total downloads3
views this month0
downloads this month