Ring Back Tone (통화연곰읜) Review

South Korea pioneered this market, with SK Telecom (SKT) launching the world’s first RBT service, "Coloring," in March 2002 . Within 10 months, it achieved a 35% subscriber penetration rate. Korean Carrier Variants: SK Telecom: Coloring (컬러링). KT: Tooring (투링). LG Uplus: Feeling (필링). 2. Service Evolution: From Audio to Video (V Coloring)

The most significant recent shift is the transition to , which plays short-form video content on the caller's screen during the call setup period. Ring Back Tone (통화연결음)

Value-added services like RBT are critical for telecom operators to boost Average Revenue Per User (ARPU) . Experts predict VAS could contribute over 20% of total telecom revenue by 2025. South Korea pioneered this market, with SK Telecom

Future iterations of RBT are expected to use AI-powered recommendation engines to suggest content based on caller behavior and preferences. KT: Tooring (투링)