Doesn't say anything and when you return the call, just a message that says thanks for calling and leave your name and number. Maybe fishing for a "Live" number. I don't leave any info on these calls.
I believe this is the fire department charity scammers coming back with a differerent phone #. The local fire departments here in Hickory, NC published in the paper that they do not participate in any charities that solicit funds by telephone. The police departments in this area previously published the same statement.