Site Link Tester for VoIP Diagnostics
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Solution Overview
Problem
VoIP service providers face high costs and inconvenience due to the need for on-site visits by technicians to troubleshoot VoIP issues and conduct 911 compliance tests, which can lead to service outages and prolonged diagnostic times.
Innovation Solution
A Site Link Tester (SLT) system that connects to a VoIP phone system, featuring a phone emulation application and packet-capture application, allowing remote on-demand testing and analysis of VoIP issues, including 911 compliance, without the need for on-site presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a technician conducts on-site test calls to troubleshoot VoIP issues, then diagnostic accuracy is improved, but travel time and technician costs increase
Solution Approach 1:
The patent creates a virtual copy of a telephone endpoint (softphone or hardware phone) that runs on the SLT device. This virtual endpoint replicates the functionality of a real phone at the customer site, allowing remote test calls to be made through the customer's VoIP system without requiring a technician to physically travel to the location. The virtual endpoint captures and analyzes call signaling and network traffic, providing diagnostic accuracy equivalent to on-site testing while eliminating travel time.
Solution Approach 2:
The SLT device acts as an intermediary between the technician and the customer's VoIP system. The device is remotely accessed by the technician through a communication interface, allowing the technician to control test calls and analyze results without being physically present at the customer site. The SLT mediates the interaction by providing a remote control interface and automatically capturing diagnostic data, thus resolving the contradiction between diagnostic accuracy and travel time.
2Measurement precision
If a technician makes on-site visits to conduct 911 compliance tests, then compliance verification accuracy is improved, but service outage time increases
Solution Approach 1:
The SLT device is pre-configured with compliance testing capabilities and can be remotely deployed to the customer site before service is needed. The device automatically performs 911 compliance tests by placing test calls to PSAPs and capturing signaling data, allowing compliance verification to be completed without requiring technician on-site presence during critical service periods. This preliminary setup and automated testing reduces service outage time while maintaining verification accuracy.
Solution Approach 2:
The SLT device performs compliance testing autonomously once remotely activated by a technician. The device automatically dials test numbers, captures call signaling and network traffic, and generates compliance reports without requiring continuous technician involvement. This self-service capability allows compliance verification to proceed while minimizing service disruption, as the device operates independently after initial remote setup.
3Adaptability or versatility
If a technician leases a softphone license from the customer to place test calls, then test call capability is improved, but diagnostic time is prolonged
Solution Approach 1:
Instead of leasing a softphone license from the customer, the patent implements a virtual phone endpoint that is natively integrated into the SLT device. This virtual endpoint is created through virtualization technology and does not require external licensing from the customer's VoIP system. The virtual phone can immediately place and receive test calls through the customer's network infrastructure, eliminating the time required to obtain and configure softphone licenses while maintaining full test call capability.
Solution Approach 2:
The SLT device incorporates a universal virtual phone endpoint that can operate independently of customer-specific softphone licenses. The device is designed to work with multiple VoIP systems and providers through standardized protocols, providing test call capability without requiring customization or licensing agreements with individual customers. This universal approach eliminates the licensing step and associated delays in the diagnostic process.
Data Source
AI summary
Remote on-demand site link testing is provided. A site link tester (SLT) system includes an SLT connected to a customer's VoIP phone system. The SLT is configured to communicate with a front end client application operating remotely on a user's computing device. The packet-capture application receives instructions from the client application to perform a packet capture in association with the SLT's network interface and/or to operate as an emulated VoIP endpoint and conduct a test call (e.g., to confirm the customer's VoIP system's compliance with 911-associated legislation or to troubleshoot a VoIP issue). Results of the packet capture may be sent to the client application and analyzed for remotely diagnosing and troubleshooting VoIP-related problems. Using the SLT system, the technician is enabled to perform 911-associated legislation compliance and diagnose VoIP issues on-demand from a remote location, which can reduce or eliminate the need for a technician to be on-site.


