It’s a cool winter Shabbat morning. Donned in his tallit, Moshe Stareshefsky is davening in his customary seat (makom kavua) at the Young Israel of Passaic-Clifton when his hand-held Hatzolah radio suddenly vibrates. Calmly and without disruption, Moshe heads out and within minutes is responding to an emergency call. At the resident’s home, the 44-year-old Passaic native checks key vitals before summoning the local Hatzalah ambulance.