Hello. My hearing loss is such that I can go without hearing aids and as retired and spend most of my time in my room turn up tv etc., or phone.... although their office is closed now re Covid I did used to go to see a counsellor at the Canadian Hearing Society covered by our Provincial Health Plan and they had a display of clocks and telephones etc. When I was working for a government landlord years ago we teemed up with the C.H.S. and provided a little box the tenant plugged their lamp into which made it flash when there was a telephone call or someone in the lobby buzzing. We also provided smoke detectors and to those with hearing loss, ones that flashed; however, I do remember that although they worked for many, they didn't for others.... so I hope you find something that works well for you. Do you have a non-profit hearing assistance organization that could help? J.