Seattle Fire Department Aid 25 being dispatched and responding to 1641 Bellevue Ave. at 1502 on 12/17/2008. Also on the run was Medic 1. Aid 25 went on 5,420 runs during 2007, making it the second busiest Aid unit in the SFD, behind Aid 2. Also quartered at Station 25 is Engine 25, Ladder 10, and Battalion 2. Dispatch is picked up with my trunking scanner. A horn sounds in the SFD stations at the same time as the initial radio tone, the appropriate door(s) automatically open, and the apparatus floor lights turn on. Once on the street, dispatch gives the call details to the responding companies.