Posted by admin in Bluetooth headset is an innovation in maintaining call privacy while providing the user, freedom of movement. Bluetooth headset acts as a device’s audio input and output interface. A Bluetooth headset must be able to send AT-commands and receive result codes. With this ability, the user can answer incoming calls and also terminate them without physically attending to the telephone handset. The Headset Control entity is responsible for headset-specific-control signalling which is based on AT commands.
A Bluetooth headset has two roles defined for it. The Audio Gateway (AG) is the gateway for audio for both input and output which works on cellular phones and PCs. The Headset (HS) acts as the AG’s remote input and output mechanism. The Bluetooth headset profile requires that both devices should support Synchronous-Connection-Oriented (SCO) link establishment. For serial port emulation, RFCOMM is the Bluetooth specification adaptation while SDP is Bluetooth Service Discovery Protocol.
A Bluetooth headset may have remote audio volume control as an added feature. A Bluetooth headset should comply with the Generic Access Profile (GAP) with regard to its operations and procedures.
Despite the freedom provided, Bluetooth headset is not devoid of restrictions. Only one audio connection can be supported between the headset and audio gateway at a time. Bluetooth headset offers basic interoperability only which does not support multiple calls at the audio gateway.
With increasing demands, Bluetooth headset is incorporating various features like multiple charger attachments, different shapes, one and two-way buttons, different sizes of earplugs and compact and stylish with sound clarity, signal integrity and zero distortion.
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