If you have elderly in your house, then it might be useful to install wireless safety alert systems to ensure their wellbeing. They can use these devices to call for help in case they need it. Unlike ordinary phones, these are simpler to use and even more reliable. The number of buttons have been trimmed to the bare essentials to prevent confusion and guarantee quick signal transmission.
Signal range is around 30 meters or so. This should be enough for most homes. They can roam around the yard and relax in the patio by themselves. Even if the elderly relative is in the far side, people can still be alerted if they call or press the panic button. They may be given autonomy and privacy most of the time with the confidence that any difficulties will be known right away. This peace of mind is invaluable.