Recorded call. Left message that this was the last attempt by the IRS to get in touch with us and that they were filing a lawsuit. Caller ID said "Wireless Caller." Definitely an IRS Scam.
Left a msg on my child's cell phone stating it was the final notice from the IRS. Stated we needed to call back immediately or a lawsuit would be filed. Going to report the call to the IRS and hope it helps in catching these bozzos.