VOIP Call QoS Monitoring via Network Analyzers
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Solution Overview
Problem
Network operators face difficulties in identifying and troubleshooting Quality of Service (QoS) issues in Voice over Internet Protocol (VOIP) telephone calls transmitted through complex communications networks, as they need to analyze thousands of calls passing through multiple nodes.
Innovation Solution
A method and apparatus that enable communication between a Network Troubleshooting Center (NTC) and Network Analyzers (NAs) to monitor VOIP data streams, allowing the NTC to provide quality of service statistics for specific VOIP calls by transmitting identifying information, stopping data stream identification, and collecting quality of service data from NAs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If network operators manually analyze thousands of VOIP calls through multiple network nodes, then they can identify QoS issues, but the troubleshooting time and complexity increase significantly
Solution Approach 1:
The patent introduces an intermediary system comprising a network troubleshooting center and distributed network analyzers that automatically monitor and analyze VOIP calls. This intermediary infrastructure mediates between the raw call data and the network operator, providing filtered QoS statistics and eliminating the need for manual analysis of thousands of calls.
Solution Approach 2:
The patent replaces the manual mechanical analysis process with an automated electronic monitoring system. Network analyzers automatically capture call data, track QoS parameters, and generate statistics, substituting human operators' manual review with automated computational analysis that is both faster and more precise.
2Reliability
If network operators monitor all VOIP calls through multiple network nodes, then they can identify QoS problems, but the system complexity and resource requirements increase
Solution Approach 1:
The patent divides the monitoring system into segmented components: a central network troubleshooting center that coordinates monitoring efforts and multiple distributed network analyzers that monitor specific network nodes. This segmentation allows the system to cover multiple network nodes comprehensively while distributing the monitoring workload and reducing the complexity burden on any single component.
3Measurement precision
If network operators analyze thousands of VOIP calls to find QoS issues, then they can identify problems, but the difficulty of detecting and measuring specific call parameters increases
Solution Approach 1:
The network analyzers act as intermediaries that automatically extract and measure specific call parameters (such as call setup time, packet loss, jitter) from the VOIP data streams. This intermediary measurement layer simplifies the detection process by pre-processing the raw data and presenting organized QoS statistics to operators, rather than requiring them to manually measure parameters across thousands of calls.
Data Source
AI summary
Network analyzers (NAs) monitor respectively corresponding communication lines through which Voice over Internet Protocol (VOIP) data streams are transmitted. A network troubleshooting center (NTC) communicates with the NAs to provide quality of service statistics for data streams transmitted through the communication lines and associated with a respective telephone call.