Dynamically Troubleshooting Voice Quality

• US 20080285474A1
• Filed: 05/14/2007
• Published: 11/20/2008
• Est. Priority Date: 05/14/2007
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: SEETHARAMAN, Anantha Narayanan, Blatnik, Jennifer Mun, Chokshi, Jayesh A.
• Granted Patent: US 7,978,620 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 43/0829 Packet loss
• CPC Class Codes: H04L 43/0852 Delays
• CPC Class Codes: H04L 43/087 Jitter
• CPC Class Codes: H04L 65/1083 In-session procedures
• CPC Class Codes: H04L 65/765 intermediate
• CPC Class Codes: H04L 65/80 Responding to QoS

Abstract

In an example embodiment, a method for dynamically troubleshooting voice quality. The method comprises generating a request to intercept a predetermined data stream on a network, acquiring a replicated copy of the intercepted data stream responsive to the request and analyzing the replicated copy of the intercepted data stream.

Claims

1. A method, comprising:

requesting a predetermined data stream on a network to analyze;

acquiring a replicated copy of the predetermined data stream responsive to the request; and

analyzing the replicated copy of the predetermined data stream.

2. A method according to claim 1, wherein the predetermined data stream is acquired from a gateway server in data communication with an endpoint of the data stream.

3. A method according to claim 1, wherein the data stream is selected from a group consisting of a voice stream, a data stream and a video stream.

4. A method according to claim 1, wherein the data stream is a voice stream.

5. A method according to claim 4, the generating a request further comprises searching for a Real-Time Transport Protocol port and an Internet Protocol address of the data stream at a voice gateway.

6. A method according to claim 4, wherein the analyzing the replicated copy of the predetermined data stream analyzes communication content, the analysis is selected from the group of consisting of generating a Mean Opinion Score for the replicated data stream and generating a Packet Perceptual Speech Quality Measurement for the replicated data stream.

7. A method according to claim 1, wherein the analyzing the replicated copy of the predetermined data stream further comprises analyzing signal parameters and waveform of the replicated stream.

8. A method according to claim 1, wherein the analyzing the replicated copy of the predetermined data stream further comprises determining a packet loss rate for the replicated stream.

9. A method according to claim 1, wherein the analyzing the replicated copy of the predetermined data stream further comprises analyzing whether the replicated data stream contains data packets with errors.

10. A method according to claim 1, further comprising acquiring intercept related information.

11. A method according to claim 10, wherein the intercept related information comprises call setup information for a Voice over Internet Protocol data stream.

12. An apparatus, comprising:

an interface for acquiring data representative of a predetermined data stream to intercept;

a communication port coupled to a network in data communication with the data stream; and

voice quality logic coupled to the interface and the communication port;

wherein the voice quality logic is responsive to the interface acquiring data representative of the predetermined data stream to intercept to transmit a request through the communication port to intercept the predetermined data stream; and

wherein a replicated copy of the predetermined data stream is received via the communication port is analyzed by the voice quality logic.

13. An apparatus according to claim 12, wherein the data stream is selected from a group consisting of a voice stream, a data stream and a video stream.

14. An apparatus according to claim 12, wherein the data stream is a voice stream.

15. An apparatus according to claim 14, the request comprises a Real-Time Transport Protocol port and an Internet Protocol address of the data stream at a voice gateway.

16. An apparatus according to claim 14, wherein voice quality logic analyzes communication content of the replicated copy of the predetermined data stream, the analysis is selected from the group of consisting of generating a Mean Opinion Score for the replicated data stream and generating a Packet Perceptual Speech Quality Measurement for the replicated data stream.

17. An apparatus according to claim 12, wherein the voice quality logic is configured to analyze signal parameters and waveform of the replicated copy of the predetermined data stream.

18. An apparatus according to claim 12, wherein the voice quality logic is configured to determine a packet loss rate for the replicated copy of the predetermined data stream.

19. An apparatus according to claim 12, wherein the voice quality logic is configured for analyzing whether the replicated copy of the predetermined data stream contains data packets with errors.

20. An apparatus, comprising:

means for generating a request to intercept a predetermined data stream on a network;

means for acquiring a replicated copy of the predetermined data stream responsive to the request; and

means for analyzing the replicated copy of the predetermined data stream.