Hi to everyone. My wife and I are 82. Her dementia was diagnosed a year and a half ago. She is unable to care for herself and can't be left alone but for short times. My worry now is if for some reason I should become unresponsive for any reason that she would not know how to call for help. Some of the systems I looked at would call 911 but she is not able to tell them where she lives. She can just barely verbalize what she wants or needs. It is getting harder to understand what she is trying to say. I have VOIP for home phone and most units require a land line. Some units work with a mobile phone which I have but comes back to the problem of her not being able to communicate. Any suggestions would be greatly appreciated.