Didn't pick up; went to VM: pre-recorded/computerized female voice with phony claim about an "IRS" case against me. Scammers seem unfamiliar with English, since this computerized pitch had noticeable grammatical errors.
New twist: this is the 2nd time today I got this exact same "IRS" roboscam call using spoofed numbers. FYI, earlier today they used 305-501-2723.