Scam. DO NOT ANSWER. Calling about donations for fireman and police. In my area the 100 Club is the charity that does this. When they call , it's a live person calling from a local number and never a robocall.
They did not leave message. Returned call. They have a recorded message saying all agents are unavailable at the time and to try back at another time...or press one to be placed on do not call list. Pressing one returned me to the original recording that no agents are available ,etc. Another info site has described this number as fund raising for non-profit.