During a call, the audio data can handle their own way? ?

During a call, the audio data can handle their own way? ?

If I put it over and then distributed to the other voice encryption, there is a corresponding item?

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Reply:
Using RTSP protocol, which there is a protocol used to encrypt the field K
Reply:

cited a floor kechanghe0705 reply:

using RTSP protocol, which will have a K-field protocol for encryption

I mean, during the call. . . Can call the audio data obtained
Reply:
mediaRecorder.setAudioSource (MediaRecorder.AudioSource.VOICE_CALL)
Get local and other audio conversation when it
VOICE_DOWNLINK downlink audio
VOICE_UPLINK uplink audio

Many phones have limited the recording function, can be made Cool, supported phones can be found
http://forum.xda-developers.com/showthread.php?t=1441643

Many domestic machine supports call recording, such as Coolpad ...