Most manufacturer’s warranties state that rooting the device will void the warranty. What is not mentioned is that the rooting process can be easily undone and all evidence of the phone ever having been rooted would be removed along with it. There would be no way for a cellphone technician to know that the device was rooted. The manufacturer limited user access for a reason, and that reason is to prevent the user from causing damage to the device. The warranty void clause is built in to deter curious, inexperienced users from fiddling with and fudging up the phone, and to limit the manufacturers liability in such a case. In your case, it isn’t the user that will using root access, it is Guardian, and we know exactly what we’re doing.
Android Call Recording Compatibility
Turn on GPS (Location Services) on older Android devices
Turn off PIN code request on Android devices
Android Device and App Specific Limitations
Android Messaging App Compatibility March 2016
How do I check the Android version?