My Android smartphone has recently started to audibly ring while I have the (external-on-the-phone) ringer switch turned off. This is a BIG problem for me. Two questions: is the physical ringer switch common to many (all?) Android devices or is it only on some Android phones? (my phone is a Motorola Cliq) how can one find out if the switch design is to disable the ringer in hardware (in which, I would guess, I have a defective device) or in software? And if in software, how might I test if it is in Android OS software, or the Motorola-added software, or something else?