Multiple Base Stations or another way to get door/window alerts throughout the house

I have a 3 story house and my base station is on the main floor, with one floor above and one below. I cannot hear the base station unless I'm on the main floor, how can the system be set to alert me if a door is opened when I'm in the basement or upstairs? I don't carry my phone around me in the house. This feature is a must for a home security system in my opinion. I'm coming from a traditional system of over 11 years and with this system it feels/acts a lot more flimsy and feels less secure if I can't tell what's going on throughout my entire housse when I'm in one area and can't tell what's happening in a different area? Advice? Update from ring? Tweak to the system that I may not have enabled?