VoIP Device Cellular Fallback for E911 Location Accuracy

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Solution Overview

Problem

Current VoIP systems face challenges in accurately routing emergency 911 calls and providing location information to emergency services, as they often require manual configuration updates and do not allow direct connections for 911 calls, limiting their effectiveness, especially for mobile users.

Innovation Solution

Incorporating a detector in VoIP devices to recognize a predetermined pattern in data streams and initiate a call in a cellular network for emergency services, using a cellular chip or an external ATA device to ensure accurate location determination and network connectivity for 911 calls, even if the device is not fully registered with the 911 database.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual configuration changes are made in back end databases each time the phone is moved, then location information can be updated, but the system complexity and time required for updates increase significantly

Engineering Contradiction:
Improvelocation information accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system automatically detects 911 dialing patterns and initiates cellular network calls without requiring manual configuration changes. The detector monitors data streams and the call processor automatically routes emergency calls through the cellular network, eliminating the need for manual database updates when devices move locations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system pre-configures the cellular network capability and detector in the VoIP device, so that when a 911 call is needed, the system can immediately switch to cellular networking without requiring prior manual configuration changes or database updates.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If manual configuration changes are made in back end databases each time the phone is moved, then location information can be updated, but the time required for updates increases significantly

Engineering Contradiction:
Improvelocation information accuracyVSAvoidupdate time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system automatically detects 911 dialing patterns and initiates cellular network calls without requiring manual configuration changes. The detector monitors data streams and the call processor automatically routes emergency calls through the cellular network, eliminating the need for manual database updates when devices move locations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system pre-configures the cellular network capability and detector in the VoIP device, so that when a 911 call is needed, the system can immediately switch to cellular networking without requiring prior manual configuration changes or database updates.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If direct connection for 911 calls is not allowed in current VOIP systems, then system security and control are maintained, but emergency call reliability deteriorates

Engineering Contradiction:
Improveemergency call reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system introduces a detector and call processor as intermediary components that monitor data streams for 911 patterns and automatically initiate cellular network calls. This intermediary mechanism enables emergency calls without requiring full system reconfiguration or compromising existing VoIP security controls.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The VoIP device is enhanced with dual capability: it can operate as a standard VoIP device for normal calls while also functioning as a cellular phone for emergency 911 calls. This multi-functionality ensures emergency call reliability while maintaining the existing VoIP system architecture.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS7653374B2Real-time E911 location information in a consumer VOIP solution
Publication Date: 2010.01.26 NOKIA OF AMERICA CORP
  • US7653374B2 patent drawing
  • US7653374B2 patent drawing
  • US7653374B2 patent drawing

AI summary

An apparatus in one example has: a VOIP telecommunications network; a VOIP telecommunication device operatively coupled to the VOIP telecommunications network; and the VOIP telecommunication device having a detector that recognizes a predetermined pattern in a data stream from the VoIP telecommunication device, and a call processor that initiates a predetermined call in a cellular telecommunication network in response to recognition of the predetermined pattern.