VOIP route selection using call metrics

Patent metadata

Field	Value
Publication number	US-9614756-B2
Application number	US-201514667827-A
Country	US
Kind code	B2
Filing date	Mar 25, 2015
Priority date	Mar 25, 2015
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

A method includes determining quality-of-service (QoS) metrics for each of a plurality of data streams routed by a node according to a stream-routing ratio that specifies a proportion of total data streams to be routed over each of a plurality of network paths. The method also includes determining a quality score for each of the plurality of network paths based on the QoS metrics. The method further includes modifying the stream-routing ratio based on the quality scores for the plurality of network paths to produce a modified ratio for routing new data streams, the modified ratio being selected to leverage particular ones of the plurality of network paths having high quality scores. The method still further includes applying the modified ratio to the node.

First claim

What is claimed is:

1. A method, comprising:
determining quality-of-service (QoS) metrics for each of a plurality of data streams routed by a node according to a stream-routing ratio that specifies a proportion of total data streams to be routed over each of a plurality of network paths;
determining a quality score for each of the plurality of network paths based on the QoS metrics;
modifying the stream-routing ratio based on the quality scores for the plurality of network paths to produce a modified ratio for routing new data streams, the modified ratio being selected to leverage particular ones of the plurality of network paths having high quality scores; and
applying the modified ratio to the node.

2. The method of claim 1 , further comprising:
determining that the QoS metric for a particular data stream in the plurality of data streams has fallen below a threshold level, the particular data stream being routed over a first network path in the plurality of network paths; and
routing the particular data stream over a new network path in the plurality of network paths, the quality score for the new network path being greater than the quality score for the first network path.

3. The method of claim 1 , further comprising:
receiving a new network path;
determining that the quality score for a particular network path in the plurality of network paths is below a predetermined threshold; and
replacing the particular network path with the new path.

4. The method of claim 1 , wherein each quality score is further determined based on a cost of each of the plurality of network paths.

5. The method of claim 1 , wherein each of the plurality of network paths comprise a different tier 1 network.

6. The method of claim 1 , wherein the call quality metrics comprise delay, jitter, R-Factor, and mean opinion scores (MOS).

7. The method of claim 1 , wherein the call quality metrics comprise latency, packet loss, answer seizure Ratio (ASR), network effectiveness Ratio (NER), and average call duration (ACD).

8. A computer configured to access a storage device, the computer comprising:
a processor; and
a non-transitory, computer-readable storage medium storing computer-readable instructions that when executed by the processor cause the computer to perform:
determining quality-of-service (QoS) metrics for each of a plurality of data streams routed by a node according to a stream-routing ratio that specifies a proportion of total data streams to be routed over each of a plurality of network paths;
determining a quality score for each of the plurality of network paths based on the QoS metrics;
modifying the stream-routing ratio based on the quality scores for the plurality of network paths to produce a modified ratio for routing new data streams, the modified ratio being selected to leverage particular ones of the plurality of network paths having high quality scores; and
applying the modified ratio to the node.

9. The computer of claim 8 , wherein the computer-readable instructions further cause the computer to perform:
determining that the QoS metric for a particular data stream in the plurality of data streams has fallen below a threshold level, the particular data stream being routed over a first network path in the plurality of network paths; and
routing the particular data stream over a new network path in the plurality of network paths, the quality score for the new network path being greater than the quality score for the first network path.

10. The computer of claim 8 , wherein the computer-readable instructions further cause the computer to perform:
receiving a new network path;
determining that the quality score for a particular network path in the plurality of network paths is below a predetermined threshold; and
replacing the particular network path with the new path.

11. The computer of claim 8 , wherein each quality score is further determined based on a cost of each of the plurality of network paths.

12. The computer of claim 8 , wherein each of the plurality of network paths comprise a different tier 1 network.

13. The computer of claim 8 , wherein the call quality metrics comprise delay, jitter, R-Factor, and mean opinion scores (MOS).

14. The computer of claim 8 , wherein the call quality metrics comprise latency, packet loss, answer seizure Ratio (ASR), network effectiveness Ratio (NER), and average call duration (ACD).

15. A computer program product comprising:
a computer-readable storage medium having computer-readable program code embodied therewith, the computer-readable program code comprising:
computer-readable program code configured to determine quality-of-service (QoS) metrics for each of a plurality of data streams routed by a node according to a stream-routing ratio that specifies a proportion of total data streams to be routed over each of a plurality of network paths;
computer-readable program code configured to determine a quality score for each of the plurality of network paths based on the QoS metrics;
computer-readable program code configured to modify the stream-routing ratio based on the quality scores for the plurality of network paths to produce a modified ratio for routing new data streams, the modified ratio being selected to leverage particular ones of the plurality of network paths having high quality scores; and
computer-readable program code configured to apply the modified ratio to the node.

16. The computer program product of claim 15 , wherein the computer-readable program code further comprises:
computer-readable program code configured to determine that the QoS metric for a particular data stream in the plurality of data streams has fallen below a threshold level, the particular data stream being routed over a first network path in the plurality of network paths; and
computer-readable program code configured to route the particular data stream over a new network path in the plurality of network paths, the quality score for the new network path being greater than the quality score for the first network path.

17. The computer program product of claim 15 , wherein the computer-readable program code further comprises:
computer-readable program code configured to receive a new network path;
computer-readable program code configured to determine that the quality score for a particular network path in the plurality of network paths is below a predetermined threshold; and
computer-readable program code configured to replace the particular network path with the new path.

18. The computer program product of claim 15 , wherein each quality score is further determined based on a cost of each of the plurality of network paths.

19. The computer program product of claim 15 , wherein each of the plurality of network paths comprise a different tier 1 network.

20. The computer program product of claim 15 , wherein the call quality metrics comprise delay, jitter, R-Factor, and mean opinion scores (MOS).

Assignees

• Joshi Prabodh
• Ca Inc

Inventors

• Joshi Prabodh

Classifications

• H04L45/02

  Topology update or discovery · CPC title

• H04M7/00

  Arrangements for interconnection between switching centres · CPC title

• H04L45/302 Primary

  Route determination based on requested QoS · CPC title

• H04M7/0075

  Details of addressing, directories or routing tables · CPC title