Respuesta a "will not hang up"I recently inherited this phone, and have the same problem. But I found one phone socket in my house that did not have this problem, so it seems to be a combination of a fault in the phone and some characteristic of the phone line. Then I tried putting an old DSL filter (NetSpeed EZ-DSL inline microfilter) between this phone and a phone socket which didn't work right in earlier tests. That fixed the "failure to disconnect" problem! I don't have DSL service, so it's a mystery why this works. I hope that this fix works for you.