VOIP OOB Device Multiplexed Wires SIP Trunk Filtering

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current out-of-band (OOB) devices for VOIP communications rely on legacy analog technologies, which are difficult to maintain and costly, and cellular connections are unreliable without site surveys, failing to provide effective direct VOIP services, especially for accessing edge routers.

Innovation Solution

A system and method utilizing multiplexed wires to consolidate VOIP and data network signals, with a Session Initiation Protocol (SIP) trunk filtering out non-VOIP signals, enabling direct VOIP access to edge devices through VOIP OOB devices, eliminating the need for analog conversions and maintaining digital signal integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If legacy analog OOB devices are used, then VOIP services can be provided, but the devices are difficult to maintain and costly

Engineering Contradiction:

ImproveVOIP service reliabilityVSAvoiddevice maintenance difficulty

Core Design Contradiction:

ReliabilityVSEase of repair

Solution Approach 1:

The patent replaces legacy analog OOB devices with a digital VOIP OOB device that interfaces directly with the data network through multiplexed wires. This substitution eliminates the need for analog-to-digital conversion and removes dependency on legacy analog infrastructure, thereby improving reliability while reducing maintenance complexity through standardized digital interfaces.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The VOIP OOB device is designed to handle multiple functions including VOIP signal processing, data network communication, and edge device access. By consolidating these functions into a single digital device, the system eliminates the need for separate analog modems and conversion equipment, reducing both cost and maintenance burden while maintaining service reliability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If analog to VOIP conversion devices are used, then legacy devices can connect to VOIP network, but signal quality deteriorates for modem connections

Engineering Contradiction:

Improvelegacy device compatibilityVSAvoidsignal precision

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent eliminates analog-to-digital conversion devices by implementing a pure digital VOIP OOB device that communicates natively with the VOIP network. This substitution preserves signal precision by avoiding conversion artifacts while maintaining compatibility through standardized digital interfaces and SIP protocol implementation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The VOIP OOB device acts as a digital intermediary between the data network and edge devices, using SIP trunks to filter and route VOIP signals. This digital mediation approach maintains signal integrity by operating entirely in the digital domain, avoiding the quality degradation associated with analog conversion while providing universal compatibility through standard protocols.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of manufacture

If cellular data connection is used for OOB, then cost effectiveness improves, but reliability decreases without site survey

Engineering Contradiction:

Improvecost effectivenessVSAvoidconnection reliability

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent replaces cellular data connections with a direct digital network connection through multiplexed wires. This substitution eliminates dependency on external cellular signal availability while maintaining cost effectiveness by utilizing existing data network infrastructure. The connection reliability is improved by establishing a dedicated digital pathway that does not require site surveys for signal assessment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Ease of operation

If multiplexed wires are used to consolidate signals, then direct VOIP access is enabled, but signal filtering complexity increases

Engineering Contradiction:

Improvedirect VOIP accessVSAvoidsignal filtering complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent introduces a SIP trunk as a digital intermediary within the VOIP OOB device that automatically filters and routes VOIP signals from the multiplexed wire consolidation. This intermediary approach simplifies the overall system by providing automated protocol-based filtering rather than requiring complex external signal processing equipment, thereby enabling direct VOIP access while managing filtering complexity through standardized digital protocols.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11038935B2VOIP OOB services

Publication Date: 2021.06.15 KELLY TADHG

AI summary

Systems and methods for providing direct voice over Internet protocol (VOIP) services using an out of band (OOB) device are provided. The system includes one or more multiplexed wires configured to relay a consolidated digital signal, the consolidated digital signal including one or more VOIP signals from a VOIP network, and one or more digital signals from a data network. The system further includes a Session Initiation Protocol (SIP) trunk configured to filter out non-VOIP signals from the consolidated signal, enabling a filtered VOIP signal to pass through the SIP trunk, and a VOIP OOB device configured to relay the filtered VOIP signal to an edge device.