Present
Adopted 5G mobile
communications technology
2014
Built the world's
first 3-band CA
commercial network
2012
Established the
world's first
LTE network
2011
Launched
Korea’s
first LTE signals
2008
Rolled out 3G
data service
‘OZ’
2001
Wideband Code
Division Multiple
Access (WCDMA)
1999
Code Division
Multiple Access
(CDMA one)
- Present
- 2014 ~ 2011
Video, multimedia streaming, and mobile TV
- 2008 ~ 2001
Mobile Internet and video call
- 1999
Voice call and messages