Polyphonic ringtones can create multiple tones and/or notes simultaneously. This produces a more natural and realistic sound for melodies compared to very old phones that could only produce one ...
This means that the phone has selectable ringtones that can be set to a custom melody (or "ringer") that you can change to something other than the ringtones included with the phone. Some phones ...
most of the politicians in the show use BlackBerry phones. Here's a still from the show depicting lead character Frank Underwood with his trusty BlackBerry: And here's what the ringtone sounds ...