Bluetooth Headset Call Control for VoIP via USB HID Translation
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Solution Overview
Problem
Current VoIP solutions using Bluetooth Headset Profile limit users to minimal call control functions, requiring PC intervention for call management, and do not allow outgoing calls or rejecting incoming calls directly from the headset.
Innovation Solution
A headset interface application on a personal computer translates Bluetooth Headset Profile commands into USB HID commands, enabling users to answer, reject, and initiate calls, as well as perform other call functions like call hold and waiting, using a menu system on the headset without PC intervention, through a Bluetooth audio gateway.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If Bluetooth Headset Profile is used for VoIP telephony, then wireless mobility and hands-free operation are provided, but user control is limited to basic call handling only
Solution Approach 1:
The patent introduces a Bluetooth audio gateway as an intermediary device between the headset and the VoIP application. The gateway receives limited Headset Profile commands and translates them into more comprehensive control commands that the VoIP application can understand, thereby extending the headset's control capabilities without requiring direct complex communication protocols.
Solution Approach 2:
The system is divided into three functional segments: the headset (providing wireless audio and basic controls), the Bluetooth audio gateway (providing protocol translation and command expansion), and the VoIP application (providing telephony functions). This segmentation allows each component to maintain its simplicity while the system as a whole achieves enhanced functionality.
2Adaptability or versatility
If PC keyboard or mouse is used for call control functions, then complete call management is available, but mobility and convenience are reduced
Solution Approach 1:
The Bluetooth audio gateway acts as a mediator that bridges the gap between the limited headset controls and the comprehensive call management functions. It translates simple headset button presses into complex VoIP control sequences, enabling full call management from the headset without requiring PC interaction.
Solution Approach 2:
The system enables the headset to serve itself by providing the intelligence needed for complete call management through the Bluetooth audio gateway. Users can perform all call operations directly from the headset without needing to reach for a PC, keyboard, or mouse, making the system self-sufficient for telephony tasks.
3Ease of operation
If Headset Profile protocol is used, then wireless headset communication is enabled, but additional telecommunications operations cannot be performed
Solution Approach 1:
The Bluetooth audio gateway provides multi-functionality by supporting both the Headset Profile protocol for wireless audio communication and additional command translation capabilities for enhanced telecommunications operations. This allows a single system to handle both basic audio and advanced call management functions.
Solution Approach 2:
The gateway serves as an intermediary layer that receives standard Headset Profile commands and translates them into multiple possible actions, enabling additional telecommunications operations such as call forwarding, conferencing, and other advanced features that go beyond the basic Headset Profile capabilities.
Data Source
AI summary
Systems and methods for Bluetooth Control for VoIP telephony using the Bluetooth Headset Profile are presented. A Bluetooth Headset Profile volume control command message is received and translated to a corresponding USB HID profile menu up or menu down command message. A Bluetooth Headset Profile hookswitch command message is received and translated to a USB HID profile menu item select command message.