FXO Caller ID Preservation for Legacy Third-Party Call Integration

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Solution Overview

Problem

Integrating legacy analog third-party call systems with digital software platforms, such as UCaaS platforms, often results in the loss of caller ID information due to the inability of the software platform to read analog signals from the legacy systems, leading to a lack of important identification for call recipients.

Innovation Solution

Implementing an FXO port that converts analog signals from legacy third-party call systems to digital signals compatible with the software platform, preserving caller ID information by adding an FXO indicator to the digital signals for display on VOIP phones.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If legacy analog third-party call systems are integrated with digital software platforms, then system integration and compatibility are improved, but caller ID information is lost

Engineering Contradiction:

Improvesystem integrationVSAvoidcaller ID information

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent introduces an FXO port as an intermediary device between the legacy analog third-party call system and the digital software platform. This FXO port acts as a mediator that receives analog signals from the legacy system, extracts caller ID information, and converts it to digital signals compatible with the software platform, thereby preventing information loss during integration.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical/analog signal handling with digital signal processing. The FXO port converts analog caller ID signals into digital format, enabling the digital software platform to process and display caller ID information that would otherwise be lost due to format incompatibility.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If analog signals are converted to digital signals, then compatibility with digital platforms is improved, but signal processing complexity increases

Engineering Contradiction:

Improvedigital platform compatibilityVSAvoidsignal processing

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The FXO port serves as a dedicated intermediary device that handles the analog-to-digital conversion process. By isolating the conversion functionality in a separate component, the overall system architecture remains manageable while achieving digital platform compatibility.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20260019501A1Third-Party Call System Caller Identification Presentation

Publication Date: 2026.01.15 ZOOM COMMUNICATIONS INC

AI summary

Caller identification (ID) is preserved when a legacy third-party call system is integrated with a software platform. Invite messages associated with a call from the legacy third-party call system are modified to provide the ability to preserve the originating caller ID information to pass to a voice over internet protocol (VOIP) phone associated with the software platform for display. The invite messages may be modified by a foreign exchange office (FXO) port associated with the software platform. The software platform transmits an FXO indicator to the VOIP phone to indicate to the VOIP phone to display the originating caller ID information.