Arlington, Va. (Dec. 16, 2014) – The Telecommunications Industry Association (TIA), the leading association representing the manufacturers and suppliers of high-tech communications networks, filed comments with the Federal Communications Commission (FCC) on the initiative of the Association of Public Safety Communications Officials (APCO) International, the National Emergency Number Association (NENA) and the four national wireless carriers – AT&T Mobility, Sprint, T-Mobile USA, and Verizon – (Carriers) to improve wireless 9-1-1 call location accuracy for indoor and outdoor calls.