I am legally blind and my Cadence phone suddenly has turned off the ringtone, the symbol appears with a slash through the bell on the upper portion of the display area.I am able to call out on the phone and get incoming calls and messages, but the phone does not ring! When I do what Verizon says and go to settings and then to master volume all I get is a screen showing the bell with a slash through it and then row of boxes and beneath it the words all sound off. There is no way to turn this on or off. In addition, when I attempt to place a call using he vice call system there is no verbal prompt or response. It will make the call if I speak loudly and say the name, but the phone gives me no verbal response like it always has in the past. Hope some of this makes sense. My vision compounds the problems and I am at loss to solve it. Please help if you can.