This is the most commonly used configuration for current popular support for Bluetooth headsets and mobile phones. It relies on SCO's 64-bit encoded audio/s CVSD or PCM as well as AT commands from a subset of GSM 07.07, including ring-capable minimum control, answering incoming calls, hanging up and volume adjustments. HSP describes how a Bluetooth headset communicates with a computer or other Bluetooth device, such as a cell phone. Once connected and configured, the headset can be used as an audio input and output interface for remote devices.
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