Android Recording Incoming and Outgoing Calls

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First off, you have to be careful with recording calls as there are legal requirements depending on the country.

Here is a blog post on how to record audio using the MediaRecorder.

I haven’t tried recording phone call’s but there is a option in MediaRecorder AudioSource for:

  • VOICE_CALL – Voice call uplink + downlink audio source
  • VOICE_DOWNLINK – Voice call downlink (Rx) audio source
  • VOICE_UPLINK – Voice call uplink (Tx) audio source

As long as the audio source options work, you should be good to go.

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