Emergency Call Practice Application Test Server Routing
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Solution Overview
Problem
Users face challenges in practicing emergency calls without inadvertently wasting Public Safety Answering Point (PSAP) resources, as existing methods for testing network routing of emergency calls can lead to accidental real calls and resource wastage, and current test solutions are limited in availability and duration.
Innovation Solution
A user equipment (UE) application that allows users to practice dialing emergency numbers locally or through a network practice mode, redirecting practice calls to a test server instead of a real PSAP, with features like practice mode indicators and silent dialing sequences to prevent accidental real calls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If users practice dialing emergency numbers using existing methods, then users can test network routing of emergency calls, but users may accidentally place real emergency calls and waste PSAP resources
Solution Approach 1:
The patent introduces a test server as an intermediary that receives practice emergency calls instead of routing them to real PSAPs. The test server simulates PSAP response and provides feedback to users, allowing them to practice emergency call procedures without consuming actual emergency services resources. This mediator resolves the contradiction by enabling reliable practice while preventing resource waste.
Solution Approach 2:
The patent creates a copy of the PSAP environment through the test server, which replicates the essential functions and response patterns of real PSAPs. Users interact with this simulated environment that mirrors real emergency call procedures, allowing them to practice and test network routing without affecting actual emergency services. The copy provides authentic practice experience while eliminating harmful resource consumption.
2Reliability
If users place practice emergency calls to test network routing, then users can verify emergency call functionality, but users may face fines for non-emergency testing
Solution Approach 1:
The test server acts as an authorized intermediary that legitimizes practice calls. By routing calls through this designated test infrastructure rather than directly to PSAPs, the system provides a lawful channel for testing emergency call functionality. Users receive confirmation that their practice calls are authorized and will not result in fines, while still achieving reliable verification of emergency call procedures.
3Reliability
If current test solutions are used for emergency call practice, then network routing can be tested, but availability and duration of testing are limited
Solution Approach 1:
The test server provides a universal testing platform that can handle multiple types of emergency call scenarios simultaneously and indefinitely. Unlike limited test solutions that restrict availability or duration, this multi-functional system accommodates various practice needs including different emergency numbers, call procedures, and network conditions. The system enables continuous, adaptable testing without the constraints of earlier solutions.
Data Source
AI summary
An emergency call practice application can execute on user equipment (UE) to allow users to practice dialing 9-1-1 or other emergency numbers. In a network practice mode, the emergency call practice application can initiate a practice emergency call by sending a call setup message to an IP Multimedia Subsystem (IMS). The IMS can route the call setup message to a Public Safety Answering Point (PSAP) routing server, which can recognize a destination identifier in the call setup message as being associated with a test server instead of a PSAP. The PSAP routing server can forward the call setup message to the test server to connect the practice emergency call.