Multiplayer on android

i want to make a multiplayer game for android

the question is does the multiplayer work if the compile with coocnjs! or do i have to do it with crosswalk?

I'm trying to make a multiplayer android game too. It works with crosswalk by exporting using intel XDK, but only with my box (my pc and my phone connected by wifi). When I try playing on 2 phones connected by 3G, it connects, logins to the room, but no communication between the phones works.