The tone comes from the original iPhone released in 2007, where Marimba was set as the default ringtone and heard everywhere in public during the smartphone's early years. Its short marimba loop became so familiar that people could identify an iPhone call from across a room. As smartphones changed and custom tones spread, the sound turned nostalgic online. Creators now reuse the long 11 second version in memes and edits to instantly signal an incoming call, recreate that early iPhone era, or trigger the urge to answer.