This from Steve Redick:

Some more classic CFD radio. Warren Jonas was the call taker and yours truly gave out the still on the amplifier. Joe Pavlik was on the radio in the office. I think the 7th battalion was Mike Hughes.   2-11 3607 Fullerton. Nothing unusual about this but just a good old typical extra alarm.

Tags: 2-11 Alarm fire in Chicago at 3607 W Fullerton, audio recording of 2-11 alarm fire in Chicago, Chicago Fire Department history