Mr TURNBULL (Wentworth—Prime Minister) (14:33): I thank the honourable member for her question. The issue of providing battery backup to mobile phone base stations is one that is well understood. Batteries are generally provided for all of that type of mobile equipment. The issue is, how long can the batteries run? And there are obviously limitations on the scale there. But I will ask the minister representing the Minister for Communications—who managed the mobile phone blackspots program in the last parliament, when he was the Parliamentary Secretary to the Minister for Communications. He managed that and did an outstanding job of it. An opposition member interjecting— Mr TURNBULL: And I might say—and the honourable member might reflect on this—that in the six years of Labor government, not one cent was spent on addressing mobile phone blackspots, whereas we are addressing hundreds and hundreds of them across Australia.