Abandoned Call Alerting Using Silent Callbacks and Signal Analysis

Solution Overview

Problem

Emergency services struggle to distinguish between real emergencies and accidental calls, leading to potential exposure of callers to danger when attempting to re-establish contact, or neglecting calls that could indicate unconscious victims.

Innovation Solution

A method and system that analyze signal data from abandoned calls to determine if the caller is in danger, sending silent or audible alerts based on device movement and proximity to others, ensuring assistance is sent without exposing the caller's location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dispatchers call back abandoned calls to alert callers, then callers may receive assistance, but callers may be exposed to greater danger

Engineering Contradiction:

Improvecaller safetyVSAvoidexposure to danger

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system applies different alerting strategies based on the specific situation and location of the caller. Silent alerts are used when the caller is in danger, while audible alerts are used when it is safe. The system also differentiates between stationary and moving devices, and considers proximity to other devices to determine the appropriate alerting method.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system uses silent alerts as an intermediary communication method that conveys emergency information without exposing the caller's location. The silent alert serves as a mediator between the emergency service and the caller, allowing communication while maintaining the caller's safety and anonymity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If dispatchers ignore abandoned calls to protect caller anonymity, then caller safety is maintained, but critical emergencies may be missed

Engineering Contradiction:

Improvecaller exposureVSAvoidemergency response

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The system continuously monitors device movement and location data to determine whether to send silent or audible alerts. This feedback mechanism allows the system to adapt its response strategy based on real-time information about the caller's situation, ensuring that critical emergencies are identified and responded to appropriately.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system changes the alerting parameter (silent vs. audible) based on detected conditions such as device movement, proximity to other devices, and time since the abandoned call. This parameter adjustment allows the system to optimize between caller safety and emergency response effectiveness.

Inventive Principle:

Principle #35Parameter changes

3Loss of time

If the system sends audible alerts to abandoned calls, then emergency response is faster, but caller position is revealed

Engineering Contradiction:

Improveresponse timeVSAvoidlocation exposure

Core Design Contradiction:

Loss of timeVSObject-affected harmful factors

Solution Approach 1:

The system applies different alerting strategies based on the specific situation and location of the caller. Silent alerts are used when the caller is in danger, while audible alerts are used when it is safe. The system also differentiates between stationary and moving devices, and considers proximity to other devices to determine the appropriate alerting method.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system uses silent alerts as an intermediary communication method that conveys emergency information without exposing the caller's location. The silent alert serves as a mediator between the emergency service and the caller, allowing communication while maintaining the caller's safety and anonymity.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12610010B2Method and a system for silent and non-exposing alerting of previously abandoned calls

Publication Date: 2026.04.21 ATOS PUBLIC SAFETY LLC

AI summary

The present invention relates to a method and a system for silent and non-exposing alerting of previously abandoned calls. The method and the system are configured in a smart way to handle callbacks in in emergency systems such as Next Generation NG9-1-1 or NG1-1-2 systems with the main focus to avoid exposing people in trouble to a dangerous situation.