There are apps that you can use for recording calls on your Android smartphones but Google’s operating system hasn’t offered call recording as a native feature as yet. However, if a new report is to be believed, this might change with the next major update for Android. It’s expected that the Android P features will include support for native call recording. Google is due to unveil Android P in a few months from now so nothing is set in stone just yet as far as Android P features are concerned.
Some recent commits made to the Android Open Source Project have been spotted which add support to play a “call recording tone,” which repeats itself after every 15 seconds. This 1400Hz frequency tone plays in 15 second intervals when a call is being recorded.
This tone will be added to the outgoing audio stream so that the person on the other end is able to understand that the call is being recorded, this behavior will ensure that this possible Android P feature meets regulatory compliance requirements.
However, this may not be required in all markets as compliance regulations are never the same everywhere. That’s probably why the commits also implement the option for carriers to configure whether or not they want to disable the tone.
It remains to be seen, though, if Google will open up this functionality to app developers because the commits don’t mention a public API. Google will unveil Android P at the I/O 2018 conference in a couple of months.