This from Steve Redick:

Here’s something for you old CFD fans. This recording was made in the 80s when we were dispatching from engine 25’s former quarters on Taylor Street. The voice you hear at the beginning of the tape is retired senior fire Alarm operator Jim Evans. I believe this is a recording he made. Those with really sharp ears will detect the voice of Dennis Dougherty now deceased former assistant chief fire alarm operator.
Steve

here’s another oldie … the operator at Main is my old partner, the late Ron Heckla … he was a switchboard man and very new on the job at this time … I recognize Dick Sterling as the voice in the old 7th battalion …

Steve