After inserting the SIM card to your phone, please carry out APN setup to activate data transmission.
In addition to that, for 050 phone number users, Voice Call Setup is also needed to use the Voice Call Service.

※JP Smart SIM New APN Setting : To users whose contract date started from 25/1, see here

25/01/18~ JP Smart SIM New APN Setting(To users whose contract date started from 25/1)

※JP Smart SIM New APN Setting : To users whose contract date started before 24/1, see here

01/10/17~24/01/18 JP Smart SIM APN Setting(To users whose contract date started before 24/1)
Set up voice call system for 050 phone number(Setting up IP Phone for JP Smart SIM)
10min FreeCall APN Setting