I have 4 phone plans, one is unlimited. Today i spoke with customer service about upgrading with edge on one of my lines (not the unlimited). I asked if once i got the new phone, if i could use it on another line (unlimited) and put another phone on the edge line. she said the new phone would only work on the line that had jump. This doesn't sound right to me, as i would think as long as i am paying my bill Verizon would not care what phone is on what line. Does anyone have experience with this?