Uniden 5.8GHz Dual Cordless Phone "turn silent mode activated mute" Questions

...silent button on the # sign on the non waterproof phone.  We did one entry to turn it on and pressed the same button again, which turned it off, and we noticed that it took the Do Not ...

...silent mode is toggled on and off by holding the appropriate key. (This is usually the # or 9 key and will have a second symbol on the key.) I will assume that you do not have a muted ringer on the ...