Caller Identity Verification for Emergency Dispatch
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Solution Overview
Problem
Existing emergency communication systems rely on device-dependent data retrieval, which can lead to irrelevant caller data being routed to dispatch personnel when a caller uses a device other than their own, resulting in ineffective emergency response.
Innovation Solution
A call server intercepts emergency communications and uses device-independent methods such as IVR redirect, HTTP authentication, SIP INFO, biometric recognition, and alternate number dialing to ascertain caller identity and retrieve relevant data from a centralized caller profile database, ensuring accurate data is routed to emergency dispatch personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If stored caller data is retrieved based on calling device information, then caller data can be routed to emergency dispatch personnel, but irrelevant caller data may be routed when a caller uses somebody else's device
Solution Approach 1:
The patent introduces an interactive voice response (IVR) system as an intermediary between the calling device and the caller profile database. The IVR system captures voice prints from the caller and compares them against stored voice prints to authenticate the caller's identity, thereby ensuring that the correct caller data is retrieved even when the calling device does not belong to the caller.
Solution Approach 2:
The patent replaces the traditional mechanical system of device-based data retrieval with a biometric authentication system using voice print analysis. Instead of relying on device identifiers or callback numbers, the system uses acoustic characteristics of the caller's voice to determine identity, substituting physical device dependency with biological characteristic verification.
2Ease of operation
If device-dependent data retrieval is used, then the system is simple to operate, but it fails to provide accurate caller data when callers use other devices
Solution Approach 1:
The system enables self-service authentication by allowing the caller to provide their voice print during the call setup phase. The IVR system automatically captures, processes, and verifies the voice print without requiring manual intervention from dispatch personnel, making the process as automatic as device-dependent retrieval but with enhanced accuracy.
3Measurement precision
If multiple device-independent authentication methods are implemented, then caller identity can be accurately determined, but system complexity increases
Solution Approach 1:
The patent implements a dynamic authentication system that adapts to the capabilities of the calling device. The system can switch between different authentication methods (voice print analysis, IVR-based authentication, or traditional device-based retrieval) depending on what is available, allowing for high precision when possible while maintaining operational simplicity when constraints exist.
Data Source
AI summary
Device independent access to stored caller data during an emergency communications event. A call server intercepts an emergency call and determines the capabilities of a calling device. Based on calling device capability, the call server uses one or more of the following device independent methods to ascertain a caller identity, independent of a calling device: interactive voice response redirect, HTTP authentication, SIP INFO method, biometric recognition, human interaction, and alternate number dialing. A caller identity is then used to query a subscriber database for a unique caller profile database key (CPDBK) assigned to the caller (unless a CPDBK is already determined). A call server uses a CPDBK to query a caller profile database (CPDB) for relevant caller data. Relevant caller data and the intercepted emergency communications event are then passed to an emergency call processing system, whereby relevant caller data may be used to more effectively address an emergency situation.