RingTone OFF to one click ?¿

[cachiputi]

(02-09-2013 09:10 AM)PaulC Wrote:  Would using the DND function not achieve a similar function?

The only difference from a caller point of view is their call would go straight to voicemail, instead of ringing a few times then going to voicemail. I get that this may not be desirable though.

Exactly, with DND calls go directly to voicemail.
What I want is, that at certain times, you can press a button type "mute" with which the volume down to 0 or 1.
For example, if my parents go to bed at 21:00 I can continue doing things in the office (which is next to their rooms) and I want to continue to receive calls, but the phone rings, to avoid waking or disturbing anyone.
Now I fix down the volume with the volume keys, but is impractical, give 20 times the button to lower the volume to 0 and then again in the morning to give 20 times to put the volume to my liking.