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BLE to in HFP profile without MIC and Speaker i.e Remote control

Hi Folks,

I have started working on CC256x TI's Bluetooth Stack and i am totaly newbie to this.

I need to work with HFP profile for BLE device. So i assume this will help me 

My query is  what are the requirements to register a device in HFP BLE profile ?


My device doesn't have MIC  and  speaker it may be used only for remote controlling. (Call picking, rejection etc.) (will it be feasible with mic & speaker ?)

So to match that i need a guideline or suggestion or documentation.

Thanks & regards.