No, video call recording is not available in the IMO application, but you can overcome this using another application that allows you to register the entire screen of your Android device.
For example, Screen Recorder offers various features to record your screen on Android: https://play.google.com/store/apps/details?id=com.nll.screenrecorder
After the application was installed, start it and configure the triggers to automatically activate when there is an IMO video call.
