title: Getting CID, LAC and signal strength of all cell towers in range
body: <p>Currently I am trilaterating my Android with the cells in my network. It is even more accurate than I thought it would be. But not as accurate as I want it to be. So I want to involve more towers than I get from getNeighboringCellInfo. I want to get the Cell ID and signal strength of every tower in range. Of every network operater. Is there a way to "ping" the towers, so they answer with cellID, Lac and signalstrength? Somehow this has to be possible. 
  And can I scan the 2G and 3G (and 4G) parallel? Or can I switch between them programmatically? 
  Any suggestions? Hope I'm clear enough...</p>