Out going call answered state in Android 2.2+
<p>In my application I initiated an outgoing call and I am using PhoneStateListener to know about call state.</p>

<p>Whenever I start making call the phone state is <code>TelephonyManager.CALL_STATE_OFFHOOK</code>. When call recipient answered the call, I am not getting any change in phone's state.</p>

<p>I tried many but failed to get this answered state. Somebody told use bluetooth's HFP (Hands Free Profile) to get call answered state. But I didn't get any information about HFP from android developers website.</p>

<p>If anybody faced same problem and got the solution, please give your valuable suggestions.</p>
