VoIP Docking Station Electronic Hook Switch for Call Continuity

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Solution Overview

Problem

Current telecommunications networks face high costs for carrying phone calls through Public Switched Telephone Networks (PSTN), whereas Voice over Internet Protocol (VoIP) reduces costs by minimizing PSTN usage, but lacks seamless integration for maintaining call continuity when switching between wired and wireless networks.

Innovation Solution

Implementing an electronic hook switch capability in a docking station that allows mobile devices to maintain VoIP call continuity by switching between wired and wireless networks, using Network Address Translation (NAT) and bridging modes, and enabling remote call management with hands-free devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If VoIP is used to carry calls over IP networks, then call costs are reduced, but call continuity when switching between wired and wireless networks is not maintained

Engineering Contradiction:

Improvecall costVSAvoidcall continuity

Core Design Contradiction:

Loss of energyVSReliability

Solution Approach 1:

The docking station serves as an intermediary device between the mobile device and the network infrastructure. It implements electronic hook switch capability that mediates between wired and wireless network connections, allowing seamless call continuity while maintaining cost-effective VoIP routing through IP networks

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If PSTN is used to carry phone calls, then call continuity is maintained, but call costs increase significantly

Engineering Contradiction:

Improvecall continuityVSAvoidcall cost

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The system dynamically switches between PSTN and VoIP routing based on network availability and cost considerations. The electronic hook switch capability enables real-time transition between connection types, maintaining call continuity through PSTN when necessary while preferring cost-effective VoIP routing when available

Inventive Principle:

Principle #15Dynamics

3Reliability

If electronic hook switch capability is implemented in docking station, then call continuity is maintained, but device complexity increases

Engineering Contradiction:

Improvecall continuityVSAvoiddocking station complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The docking station is designed with multi-functionality, serving as a universal interface that handles both wired and wireless connections, implements electronic hook switching, and manages network address translation. This consolidates multiple functions into a single device, managing complexity while enabling call continuity

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8879430B2Electronic hook switch capability for a mobile device connected docking station

Publication Date: 2014.11.04 VERIZON PATENT & LICENSING INC

AI summary

A Voice over Internet Protocol (VoIP) docking station includes a docking port configured to physically dock with a mobile device, and a Universal Serial Bus (USB) port coupled to a hands free device. The VoIP docking station further includes a processing unit configured to receive signaling via the USB port, and determine an on-hook or off-hook status of the hands free device based on the signaling.