DILG Secretary Benjamin Abalos Jr., Emergency 911 National Office executive director Francis Fajardo, United States-based firm Next Generation Advanced (NGA) 911 founder and chief executive officer Don Ferguson, and PLDT first vice president and head of enterprise and international business groups Albert Mitchell Locsin signed a memorandum of understanding (MOU) during the Emergency 911 National Summit at the EDSA Shangri-La Hotel in Mandaluyong City on Wednesday.