The module enable auto call recording for Sony Xperia™ devices with stock firmware.

The module only works on device which has call recording feature. On older firmwares, the feature is builtin. On Lollipop, Sony split it into the app called CallRecording(com.sonymobile.callrecording).

So if your firmware is Lollipop, You must install CallRecording. You can find it at here or the flashable file for 5.1.1