Described as "an electronic question and answer system", it sends a radar signal to any unidentified target to which a friendly will respond automatically with a coded reply.

BBC: NEWS | UK | No easy fix for 'friendly fire'

During a question-and-answer session, RIM executives say that some 1, 600 companies have been testing the new system.

NPR: RIM Changes Name To BlackBerry, Unveils 2 Phones