How to send AT commands based on BT Hands-Free profile in android?

Question

I am trying to establish Bluetooth connection between an Android device with other mobile phone over Handsfree profile. I am using following code -

private          


        

Answer 1

You need to create InputStream and OutputStream so you can talk to the phone:

mmInStream = m_oBluetoothSocket.getInputStream();
mmOutStream = m_oBluetoothSocket.getOutputStream();

To setup the HFP connection you start to send:

mmOutStream.write("AT+BRSF=20\r".getBytes());

Where 20 is code for what you support of HFP.

And to read from the phone:

buffer = new byte[200];
mmInStream.read(buffer);
command = new String(buffer).trim();

So now you can talk beetwen the devices and you can read more about the Handsfree profile on https://www.bluetooth.org/docman/handlers/downloaddoc.ashx?doc_id=238193