Seamless Call Transfer Between Twinned Devices
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Solution Overview
Problem
Existing communication systems do not allow users to seamlessly transfer ongoing telephone calls from one twinned device to another, limiting mobility and feature utilization, as users must terminate the original call and re-establish it on the alternate device, which can lead to interruptions or failure.
Innovation Solution
A method that involves determining the status of the first device from the second device, forming a conference call, and then removing the first device from the call, allowing the second device to continue the call connection, utilizing existing feature capabilities to reduce user participation and enable call movement between twinned devices regardless of their network or PBX equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a user terminates the original call and re-establishes it on the alternate device, then the user can switch devices, but the conversation may be interrupted or fail to continue
Solution Approach 1:
The system performs preliminary actions by automatically determining the status of the first device before the user switches devices. When the second device goes off-hook, the system proactively checks if the first device is on a call, and if so, automatically initiates the conference setup and call transfer process before the user completes their device switch, ensuring seamless continuity.
Solution Approach 2:
The patent introduces a conference call as an intermediary mechanism to facilitate the transition between devices. Instead of directly transferring the call (which may fail), the system establishes a temporary conference call that includes both the original call and the second device, then smoothly transitions the connection through this intermediary state to achieve reliable device switching.
2Adaptability or versatility
If remote retrieve or conference features are used to transfer calls between devices, then device switching is enabled, but complex user interactions and PBX feature support are required
Solution Approach 1:
The system implements self-service by automatically determining the status of the first device and initiating the call transfer process without requiring user knowledge of complex features. When the second device goes off-hook, the system autonomously checks call status, sets up conferences, and manages the transfer, eliminating the need for users to understand or manually configure PBX features.
Solution Approach 2:
The conference call feature acts as an intermediary that simplifies the transfer process. Instead of requiring users to directly manipulate complex PBX features, the system uses the conference call as a中介 mechanism that automatically manages the transition, reducing user interaction complexity while maintaining call transfer capability.
3Reliability
If the system automatically determines device status and initiates conference calls, then call transfer reliability is improved, but system complexity increases
Solution Approach 1:
The patent applies universality by implementing a multi-functional system that combines device status determination, automatic conference initiation, and call transfer management into a single integrated mechanism. This universal approach handles various call transfer scenarios (device switching, mobility changes, feature access) through one unified process, improving reliability while managing system complexity through functional consolidation.
Data Source
AI summary
A method of moving telephone communication from a first device engaged in a call, to a second device. The method includes initiating a determination of status of the first device from the second device, joining the second device to the call to form a conference in response to an active call status indication, and removing the first device from the conference, leaving the second device engaged in the call.