Device Line vs additional lines

deriktran

    Maybe I am not understanding this feature.  On the DIGITS app (iPhone 6, iOS 10.1.1) , I have a 'Device Line' that's Always On ... GOOD and it's also asking me to swipe to activate other lines in order to continue.   Why?  If I just want my device line to work on my Work phone without an additional line, how do I accomplish that? 

     

    What's the purpose of the additional line?

      All replies