Ringtones have come a long way since their inception. In the late 1990s and early 2000s, monophonic ringtones were the norm. These were simple, single-tone melodies that were reminiscent of the retro video game sounds. They were rather limited in terms of creativity and personalization.
The next step in the evolution of ringtones was the introduction of polyphonic ringtones. These allowed for more complex sounds, comprising multiple tones playing simultaneously. It was a substantial improvement in comparison to monophonic ringtones, and users could now recognize popular tunes and songs with better accuracy.