Record Call in Android 2.2

Question

I have written this code for recording Calls. It works fine in Android 2.1. In Android 2.2, it creates an output file with 0 bytes.

How I can solve this?

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Answer 1

Use this snippet

_recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_DOWNLINK 
| MediaRecorder.AudioSource.VOICE_UPLINK );

instead of

_recorder.setAudioSource(android.media.MediaRecorder.AudioSource.VOICE_CALL);

Answer 2

Call recording only works on some Android phones. It might work on one phone running 2.1, but not on a different model running 2.2. Although the API will compile and run on all architectures, some devices have disabled this feature in the hardware.

See How can I record voice and record Call in Android? for more details.