If you want to Access internet on your mobile phone or tablet, PC you must have the Mobile Operator Access point Name (APN) . APN is a kind of connector which works as a getaway between your device 3G, 4G, 5G. APN will connect you to Internet. If you need to do your configuration manually here is the app you need..
9Apps 4.9
![국세청 홈택스 [손택스] on 9Apps](https://go.getnew.app/sg/res/jpg/f7/df/69cc2f90120ec331db2630e0f5b6-6dh.jpg?x-oss-process=style/jmq200)
