Network Analyzer VoIP RTP Stream Isolation
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Solution Overview
Problem
Third parties within communication networks face difficulties in isolating and monitoring specific RTP data streams associated with VoIP phone calls, making it challenging to effectively monitor these calls.
Innovation Solution
A method and apparatus that utilize a network analyzer to identify and filter the respective data stream corresponding to a VoIP phone call by monitoring protocol communications, allowing for the isolation and monitoring of the associated data stream within the communication network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a third party attempts to monitor VoIP phone calls at an arbitrary point in the communication network, then monitoring capability is provided, but the ability to isolate and identify specific RTP data streams associated with individual phone calls deteriorates
Solution Approach 1:
The patent introduces an intermediary device positioned at an arbitrary point in the communication network that acts as a mediator between the multiple RTP data streams and the monitoring third party. This intermediary device receives, identifies, and forwards the specific RTP data stream associated with the phone call being monitored, thereby enabling monitoring capability while solving the difficulty of isolating specific data streams from the mixed traffic at an arbitrary network point
Solution Approach 2:
The intermediary device utilizes information already present in the RTP data streams themselves (such as SSRC identifiers or other stream identification fields) to enable self-identification and self-isolation of the target data stream. By leveraging existing identification mechanisms within the data streams, the system enables the monitoring device to automatically identify and extract the relevant stream without requiring complex external identification systems
Data Source
AI summary
The communication apparatus includes a VoIP phone, a VoIP gateway, a communication network, and a network analyzer. The VoIP phone is a transmitting/receiving device to transmit and receive a VoIP phone call. A plurality of VoIP phone calls are transmitted and received over the communication network via the VoIP gateway. The network analyzer analyzes and monitors the plurality of VoIP phone calls transmitted and received over the communication network. Accordingly, a respective VoIP phone call is identified from the plurality of phone calls and associated with a respective data stream to be monitored and analyzed by the network analyzer.