Multiplex communications – Diagnostic testing – Fault detection
Reexamination Certificate
2006-10-31
2006-10-31
Pham, Chi (Department: 2665)
Multiplex communications
Diagnostic testing
Fault detection
C370S246000, C370S248000, C370S252000
Reexamination Certificate
active
07130273
ABSTRACT:
A system for testing a software client or hardware module in a voice-over-IP (VoIP) network path includes a VoIP client, a test tool, and an analyzer. The VoIP client, connected to the VoIP network, makes a series of calls to a destination. The calls activate the software client or hardware module under test. The test tool, which has access to the network, plays a series of audio files over the VoIP during the calls. The test tool also polls the software client or hardware module over the network for status information after the calls are completed. While the audio files are being played, the analyzer records the audio files at the destination for measurement the quality of the calls. Accordingly, the quality of voice connection on the VoIP network can be measured, and specific components on the network can be tested.
REFERENCES:
patent: 5867813 (1999-02-01), Di Pietro et al.
patent: 5961599 (1999-10-01), Kalavade et al.
patent: 6259691 (2001-07-01), Naudus
patent: 6275797 (2001-08-01), Randic
patent: 6363053 (2002-03-01), Schutser et al.
patent: 6370120 (2002-04-01), Williams et al.
patent: 6404764 (2002-06-01), Jones et al.
patent: 6437229 (2002-08-01), Nobumoto
patent: 6477492 (2002-11-01), Connor
patent: 6512746 (2003-01-01), Sand
patent: 6570969 (2003-05-01), Albal et al.
patent: 6600740 (2003-07-01), Valentine et al.
patent: 6603774 (2003-08-01), Knappe et al.
patent: 6633582 (2003-10-01), Panburana et al.
patent: 6665271 (2003-12-01), Thomas et al.
patent: 6700953 (2004-03-01), Maurer et al.
patent: 6707827 (2004-03-01), Shaffer et al.
patent: 6718296 (2004-04-01), Reynolds et al.
patent: 6721541 (2004-04-01), Kingsley
patent: 6735175 (2004-05-01), Havens
patent: 6738353 (2004-05-01), Chong
patent: 6741569 (2004-05-01), Clark
patent: 6748433 (2004-06-01), Yaakov
patent: 6754232 (2004-06-01), Tasker
patent: 6778496 (2004-08-01), Meempat et al.
patent: 6834040 (2004-12-01), Tomberlin
patent: 6862298 (2005-03-01), Smith et al.
patent: 6876647 (2005-04-01), Celi
patent: 6940820 (2005-09-01), Fang
patent: 2002/0143979 (2002-10-01), Douceur et al.
patent: 2002/0167936 (2002-11-01), Goodman
patent: 2003/0009306 (2003-01-01), Fang
patent: WO 00/72453 (2000-11-01), None
Author Unknown., “Omni-Q Voice Management System.” Revision A. RADCOM, 2001.
Conway, A.E., “A Passive Method for Monitoring Voice-Over-IP Call Quality with ITU-T Objective Speech Quality Measurement Methods.” Apr. 28-May 2, 2002; Communications, 2002. ICC 2002. IEEE International Conference, vol. 4. pp. 2583-2586.
De, B.S et al., “End-to-End Voice Over IP Testing and the Effect of QOS on Signaling.” Mar. 16-18, 2003; System Theory, 2003. Proceedings of the 35thSoutheastern Symposium, pp. 142-147.
Rix, A.W. et al. “The Perceptual Analysis Measurement System for Robust End-to-End Speech Quality Assessment.” Jun. 5-9, 2000; Acoustics, Speech and Signal Processing, 2000, ICASSP' 00. Proceedings. 2000 IEEE International Conference, vol. 3.
Ma, Angus; “Voice over IP (VoIP) Testing Methodology and Case studies”; Spirentcom White Paper, 'Online! Feb. 2001 (2001-02); pp. 1-33; Spirent Communications; www.spirentcom.com.
Reynolds et al.; “Quality VoIP—an engineering challenge”; BT Technol J; pp. 23-32; vol. 19, No. 2, Apr. 2, 2001; BT Laboratories, GB.
Cole et al.; “Voice Over IP Performance Monitoring”, Computer Communication Review; ACM SIGCOMM, Apr. 2001; pp. 9-24; Middletown, NJ; US; AT&T Laboratories.
Faegre & Benson LLP
Level 3 Communications, Inc.
Pham Chi
Philpott Justin M.
LandOfFree
QOS testing of a hardware device or a software client does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with QOS testing of a hardware device or a software client, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and QOS testing of a hardware device or a software client will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3703577