3G shutdown can impact fire alarms Apr 13, 2022 As companies including AT&T, T-Mobile and Verizon shut down 3G networks this year, the Rochester Fire Department wants you to know that this could impact your fire alarm. Click here to read more. ← New Eco-Friendly Coating to Make Building Materials Fire-ResistantFirefighters say RCMP gunfire at N.S. fire hall caused lasting trauma →