Wireless POTS Alternative Using Multi-SIM Signal Switching
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Solution Overview
Problem
The phase-out of Plain Old Telephone Service (POTS) connections necessitates an alternative solution for homes and businesses that rely on them for telephone communications and safety systems, as mandated by the Federal Communication Commission.
Innovation Solution
A POTS alternative system comprising a gateway, a router, a modbus converter, and an uninterruptible power supply (UPS) that utilizes a SIM card to automatically connect to the strongest cellular signal, enabling seamless transition between service providers and supporting legacy protocols for various customer premises equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If POTS connections are phased out as mandated by the FCC, then modern digital network infrastructure is improved, but reliability of telephone communications and safety systems deteriorates
Solution Approach 1:
The patent introduces a gateway device as an intermediary between legacy POTS equipment and modern digital networks. The gateway converts analog POTS signals to digital VoIP signals, enabling legacy equipment to function over modern IP-based networks while maintaining communication reliability during the transition period
Solution Approach 2:
The system performs preliminary actions by pre-configuring the gateway with multiple cellular service provider connections and automatic failover capabilities before POTS disconnection occurs. This ensures that if the primary connection fails, the system can immediately switch to backup connections without interrupting service
2Device complexity
If a single cellular service provider is used, then device complexity is reduced, but reliability deteriorates due to lack of backup connections
Solution Approach 1:
The system dynamically manages multiple cellular service provider connections by automatically monitoring signal strength and connectivity status of each provider. The gateway can switch between providers based on real-time conditions, and the system adapts to changing network environments without requiring manual intervention
Solution Approach 2:
The system changes operational parameters by adjusting which cellular service provider is actively used based on signal quality metrics. The gateway monitors parameters such as signal strength, connection stability, and service quality, then switches between providers to optimize performance and maintain reliability
3Reliability
If automatic switching between cellular service providers is implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The gateway performs self-service by automatically monitoring connection quality across multiple cellular service providers and switching between them without user intervention. The system autonomously evaluates signal strength, connection stability, and service quality, then makes switching decisions independently, reducing the need for complex user configuration and management
Data Source
AI summary
A POTS alternative including an uninterruptible power supply (UPS), a router, a modbus converter for connecting the router to the UPS to monitor conditions of the UPS, a gateway for providing connections to one or more POTS-based customer premises equipment through the modbus converter to the router and directly to the router. The router includes a plurality of SIM cards, each SIM card for connecting to one cellular service provider among a plurality of cellular service providers. The router automatically connecting to a cellular service provider among the plurality of cellular service providers providing the strongest cellular signal and switching from the cellular service provider to a different cellular service providers when the different cellular service provider provides a stronger cellular signal when the cellular service provider no longer provides the strongest cellular signal.