Are you there is also right..
"You are there" is more suitable because "are you there" is like you are asking that person not saying
Anyone knows how would you make this into a question "Are you there"?
'There you are' is common in English, is that compatible?
I think this is more like a sign on a map (Google maps idea - your town), except that on maps for parks and such, they say "You are here."