Home Phone can look like its working but it's not
I have a Wireless Home Phone ZTE device (don't know the exact model number). Ever since I've owned it (3+ years), the lights will be all green, making it looks like it's working fine, but every so often, calls do not get through to my physical phone. So I end up not knowing someone has called, sometimes for weeks, until I try making a call out. I need to turn it off and on for it to start working again. People should be aware of this before signing up (and paying for!) this device/service.