I do not answer calls from callers I do not recognize, so I let this go to the answering machine.
They did not leave a message so I am blocking this number.
I am on the do not call list but that only works for legitimate businesses, so this is most likely a SCAM.
They left a message. In general, they offered senior citizens a medical alert system "free of charge". The caller prompted a verification of address was "all that was necessary to receive this free of charge equipment". Since it was a message, I was unable to press the prompt to see what else information they were trying to obtain.