Intelligent Protocol Switching Gateway for Telephony Interoperability

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Solution Overview

Problem

Current telephony systems face interoperability issues due to dissimilar communication protocols, firewalls, and network address translation, preventing seamless communication between different telephonic devices and networks, especially across corporate environments.

Innovation Solution

An intelligent protocol switching system and method that includes an application engine to determine and convert communication protocols between end-points, using a protocol conversion engine to ensure compatibility, allowing communication between dissimilar networks by converting protocols such as UDP to TCP and employing techniques like tunneling to bypass firewalls and NATs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If protocol conversion is implemented to enable communication between dissimilar telephonic devices, then interoperability and adaptability improve, but device complexity and system overhead increase

Engineering Contradiction:
ImproveinteroperabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a gateway device as an intermediary between telephonic devices operating on different protocols. The gateway receives communications from one protocol, converts them to the target protocol, and forwards them to the destination device. This mediator approach enables interoperability without requiring direct protocol compatibility between end devices, resolving the contradiction by centralizing conversion functionality in a dedicated component rather than embedding it in every device.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The gateway device is designed to support multiple protocol conversions simultaneously, acting as a universal interface between different telephony systems. It can handle conversions between various IP-based protocols and traditional telephony protocols, making a single device capable of interfacing with multiple different protocol families, thereby improving adaptability without proportionally increasing overall system complexity.

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

2Reliability

If firewalls and NAT servers are deployed to protect networks, then network security improves, but peer-to-peer communication capability deteriorates

Engineering Contradiction:
Improvenetwork securityVSAvoidpeer-to-peer communication
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The gateway serves as a mediator that operates within the protected network perimeter while enabling external communications. It receives incoming connections from outside the network, performs protocol conversion, and forwards them to internal devices in a controlled manner. This allows peer-to-peer communication to function through the firewall without compromising security, as the gateway acts as a trusted intermediary that manages the connection flow.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system enables communications to skip through the firewall by having the gateway listen for incoming connections on externally accessible ports and then relay them to internal devices. This approach allows data traffic to effectively bypass the firewall's blocking behavior by using the gateway's established connection channels, maintaining both security and communication capability.

Inventive Principle:
Principle #21Skipping (Rushing through)

Data Source

PatentEP2460342B1Telephonic communications with intelligent protocol switching
Publication Date: 2016.09.14 BT AMERICAS INC
  • EP2460342B1 patent drawingFigure 1A
  • EP2460342B1 patent drawingFigure 1B
  • EP2460342B1 patent drawingFigure 2

AI summary

In various exemplary embodiments described herein, a system and associated method to intelligently and automatically select compatible communication protocols between one or more communications networks is disclosed. The system can include an application engine configured to couple to at least a first one of the one or more communications networks and receive a sample of an attempted communication from a first end-point. The first end-point is a telephonic device attempting to initiate communications with a second end-point. The second end-point is also a telephonic device. The application engine includes a decoder engine to determine a first protocol associated with the first end-point and a second protocol associated with the second end-point. A protocol conversion engine is configured to convert the first protocol to be compatible with at least a second one of the one or more networks associated with the second protocol.