https://techcrunch.com/2023/06/14/truecaller-reintroduces-call-recording-for-premium-users/

Caller identity app Truecaller has introduced call recording on both iOS and Android. While restrictions on both operating systems prevent apps from recording calls natively, Truecaller is getting around it by calling a dedicated recording line.

On Android, users can directly use Truecaller’s dialer to start a recording call. If they are using another dialer, Truecaller will show a floating recording button.