Application Introduction -This is a service that you use as a means of attendance & authentication by registering authentication information (smartphone) that can be used only by you. [Service Target] -Dedicated application for eSLS remote course students only, if you are an eSLS remote course students can conveniently proceed with their own authentication. (Withdrawal is excluded) -Only students who can verify their mobile phone can use it. [Information Use]  1. After you register for the co