There are many things that can cause humming or static in the phone line, including a shorted wire, defective device, interference from other power wires, and light fixtures. If you hear this noise frequently, then there might be an issue with your service provider's side of communication. The key to finding an excellent cordless phone for seniors is research. Sort through the best landline phones on the market, then identify the cordless phone features that would benefit your senior family members the most. For a more accurate assessment, consult your elderly loved one. Ask them what type of phone they feel most comfortable using. Overall, the best cordless phone has an ergonomic, functional interface. Go for options with a large block button, a loud phone ring sound, and a straightforward answering system. Advanced models with complex technology might end up confusing the user. Remember: seniors prioritize functionality and convenience over form or aesthetics.