Ring Back Tone (통화연곰읜) -

While SKT launched V Coloring in September 2020, all three major Korean carriers (SKT, KT, LG U+) began offering it as a unified joint service in May 2021.

As of 2021, the service offered approximately 4,000 types of videos , including K-pop idol content and user-created videos. Ring Back Tone (통화연결음)

Future iterations of RBT are expected to use AI-powered recommendation engines to suggest content based on caller behavior and preferences. While SKT launched V Coloring in September 2020,