Poor
If you’re reading this review then it’s probably too late but the app is useless. If you trying to use remotely if you are away from the base station. You either miss a call altogether or when you do answer you can’t hear the caller. You will then need to remove the app altogether and re-install. This solves the problem for a few hours before you need to do the same again. “4 coms” solution is to offer the upgraded phones on a “new” contract at an exorbitant price over 7 years. By the way, you can’t use the app if you have Apple car play installed. They clash