At the device level, the operating system maintains a "reject list." When an incoming Call Setup ID matches a number on this list, the OS automatically terminates the radio connection or routes the call to voicemail without triggering the audible ringer or screen wake-up.
With just a few taps, you can silence the noise. Choose to block specific nuisance numbers, filter out unknown callers automatically, or activate total "Do Not Disturb" mode. When you bar a call, your phone stays silent, but you stay connected to what matters. Reclaim your focus and let voicemail handle the rest. bar incoming calls
Pixel: Phone app → Settings → Blocked numbers → Block unknown/hidden numbers. Samsung: Phone app → Settings → Block numbers → Block unknown numbers. At the device level, the operating system maintains