Title:
SERVICE LEVEL AGREEMENTS BASED ON OBJECTIVE VOICE QUALITY TESTING FOR VOICE OVER IP (VOIP) NETWORKS
Document Type and Number:
WIPO Patent Application WO2002093894
Kind Code:
A3
Abstract:
An objective, service-level specific voice call listening quality test scheme for a Voice Over IP (VOIP)network is presented. Test probes are deployed along the border of the VOIP network. Each test probe is capable of placing calls over the VOIP network to the other test probes at different levels of service and measuring call quality using an objective measurement algorithm such as PAMS or PSQM. The measurement results are collected on an ongoing basis to obtain information on the VOIP network's voice call quality. The information is compared to thresholds to measure performance against Service Level Agreement guarantees.
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Inventors:
GOODMAN LEE (US)
Application Number:
PCT/US2002/015225
Publication Date:
February 27, 2003
Filing Date:
May 14, 2002
Export Citation:
Assignee:
GENUITY INC (US)
GOODMAN LEE (US)
GOODMAN LEE (US)
International Classes:
H04L12/24; H04M3/22; H04M3/32; H04M7/00; (IPC1-7): H04M3/22; H04M7/00; H04L12/26
Domestic Patent References:
| WO2000072453A1 | 2000-11-30 |
Other References:
SPIRENT COMMUNICATIONS: "Voice over IP (VoIP) Testing Methodology and Case Studies", SPIRENTCOM WHITE PAPER, February 2001 (2001-02-01), XP002221045, Retrieved from the Internet [retrieved on 20021115]
REYNOLDS R J B ET AL: "QUALITY VOIP - AN ENGINEERING CHALLENGE", BT TECHNOLOGY JOURNAL, BT LABORATORIES, GB, vol. 19, no. 2, 1 April 2001 (2001-04-01), pages 23 - 32, XP001034585, ISSN: 1358-3948
COLE R G ET AL: "VOICE OVER IP PERFORMANCE MONITORING", COMPUTER COMMUNICATIONS REVIEW, ASSOCIATION FOR COMPUTING MACHINERY. NEW YORK, US, vol. 31, no. 2, April 2001 (2001-04-01), pages 9 - 24, XP001100240, ISSN: 0146-4833
REYNOLDS R J B ET AL: "QUALITY VOIP - AN ENGINEERING CHALLENGE", BT TECHNOLOGY JOURNAL, BT LABORATORIES, GB, vol. 19, no. 2, 1 April 2001 (2001-04-01), pages 23 - 32, XP001034585, ISSN: 1358-3948
COLE R G ET AL: "VOICE OVER IP PERFORMANCE MONITORING", COMPUTER COMMUNICATIONS REVIEW, ASSOCIATION FOR COMPUTING MACHINERY. NEW YORK, US, vol. 31, no. 2, April 2001 (2001-04-01), pages 9 - 24, XP001100240, ISSN: 0146-4833
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