About Us : Call Sign 7 is a new business (trading as of July 2006) and has alreadady released its first game from the "WHAT IF" Series. Featuring a new and revolutionised, 3 tierred Combat Boards. Call Sign 7 Is a designer of WW2 strategy board games. Asking the question "What if you CALL SIGN 7re there, could you have me a difference? " Call sign 7 is located in Mandurah Western Australia and looks forward to talking to any retailer that would like to do business.