Before I bought a Xiaomi it was impossible to record any call (Samsung, HTC) and it seems it was by design. The only way was installing an app that somehow rout

Before I bought a Xiaomi it was impossible to record any call (Samsung, HTC) and it seems it was by design. The only way was installing an app that somehow routed the recording through their servers (no, thanks) otherwise you could only record outgoing (or was it incoming?) sound.