Communication Session Restoration After Interrupted Calls

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Solution Overview

Problem

Existing communication systems fail to automatically restore interrupted communication sessions between two terminals, leading to user inconvenience and inefficiency due to unintentional disconnections.

Innovation Solution

A method and device that alert users to communication session interruptions and automatically initiate a new session using a communication management system, which includes a communication management device and alerting device to re-establish the connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If automatic callback function is used when a user calls another user who is busy, then the calling user can be automatically connected when the called user becomes available, but the system cannot restore interrupted communication sessions and users must manually redial

Engineering Contradiction:
Improveautomatic connection capabilityVSAvoidcommunication session restoration
Core Design Contradiction:
Ease of operationVSExtent of automation

Solution Approach 1:

The system performs preliminary actions by detecting communication interruptions and automatically initiating restoration procedures before the user needs to manually redial. The communication management device monitors session status and proactively restores connections, eliminating the need for user-initiated redialing operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The communication system provides self-service by automatically detecting and restoring interrupted communication sessions without requiring user intervention. The system monitors its own state, identifies interruptions, and executes restoration procedures autonomously, reducing the burden on users.

Inventive Principle:
Principle #25Self-service

2Reliability

If users manually redial to restore communication sessions, then communication can be re-established, but users experience time loss and increased effort

Engineering Contradiction:
Improvecommunication restorationVSAvoiduser time for redialing
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs the restoration action preliminarily by automatically detecting interruptions and initiating connection restoration before the user needs to manually redial. This eliminates the time loss associated with manual redialing operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The communication management device implements feedback mechanisms to monitor communication session status and automatically respond to interruptions. The system continuously monitors connection state and executes restoration procedures based on real-time status information, ensuring reliable communication recovery.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If both callers try to call back simultaneously after an interruption, then both users attempt to reconnect, but calls may be forwarded to voicemail due to busy signals

Engineering Contradiction:
Improveconnection restoration flexibilityVSAvoidcall connection success
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The communication management device acts as an intermediary that coordinates connection restoration between both users. Instead of allowing simultaneous direct callback attempts that may conflict with busy signals, the intermediary manages the restoration process sequentially, ensuring reliable connection establishment.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements feedback mechanisms that monitor call status and coordinate restoration attempts. The communication management device receives status information about both users' call states and uses this feedback to manage the restoration process, preventing simultaneous calls from conflicting with busy signals.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3785486B1Method and system for detecting interruption of communications and for automatically re-establishing the communications
Publication Date: 2025.11.26 ORANGE SA
  • EP3785486B1 patent drawingFigure 1
  • EP3785486B1 patent drawingFigure 2
  • EP3785486B1 patent drawingFigure 3

AI summary

Disclosed is a computerized method comprising: a) reception, by a platform (3), of a communication interruption information item; b) reception, by the platform (3), of an identifier of the terminals initially in communication; c) the emission of a request for communication destined for the second terminal (2); d) in case of failure, repeating the previous step; e) upon the establishment of communication between the platform (3) and the second communication terminal (2), emitting a request for communication with the first communication terminal (1); f) upon the establishment of the communication between the communication management platform (3) and the first communication terminal (1), placing the two terminals (1, 2) in communication with one another.