it has offered free data which could be used for swiping... why not adopt a cellnuvo system to enable people to swipe for sprint voice minutes? it sounds good to me...
I don't think it would be too enticing because most just use Hangouts for their voice minutes being its free and unlimited and all.... Sure it would be real voice minutes but I think most have just gotten use to the VOIP system and its limitations.
that voip voice quality is too bad. i want to use it on a conference meeting and everybody says the echo is too loud.