After reading many of the above post, all I can say is that "you guys sure know your stuff". I'm just glad that the stories are able to be told here. Otherwise some of this would certainly have been lost.
In talking with one of the other members here, we were discussing when Staten Island was the first place to go to "the Voice Alarm". The bells were used during some late AM hours, I think from 9 am until 12 noon daily. That was so that the members would still be able to operate with them, if the need would arise, as a back up system.
One of the very first things I can remember about my first introduction to the FDNY is when I was dropped off by a city cab on Carlton Ave in Brooklyn, just a half a block up from that firehouse. As I looked down the street, I could see that American Flag hanging out in front of the firehouse from the second floor window and the red single bay apparatus bay door. It was the quarters of Engine 210 and Rescue 2. I was about to be introduced into the Major Leagues of the Fire Department.
When I walked up to the solid wooden entrance door, I could hear the bells ringing inside. When they invited me in, some guys were cleaning off the tools from the night before. The bells were ringing and everybody just kept on doing what they were doing. I really had no idea what was going on. Then I saw everybody just kind of stop what they were doing. Somebody yelled; "Engine, Rescue, Get Out". A couple of guys then told me to climb up in the back of the rig (Rescue). I couldn't believe that I was about to ride with these guys. They put me up towards the front and Lt Hamilton (RIP) who I hadn't met yet and the driver got in. When he started up the rig I could hear the Brooklyn C.O. talking on the radio. This was all new to me, but I was about to begin my journey into what would become known as the FDNY War Years, during the busiest years, of the busiest fire department in the World.
To this day, some 45 years or so later, my very first memory of my very first introduction as a buff into the FDNY, was seeing that flag hanging outside the second floor window, with those bright red doors on that firehouse and hearing those bells ringing as I walked up to the entrance.