Caller ID says "DBA ROBERT RAKES". They leave no message.
I call back after hours (using *67 to block my number). I hear a fax machine trying to connect. I am unclear on who this is. Perhaps they dialed a wrong number.
Got another call. I called back during the day (using *67 to block my number). It was someone from the Lions club looking for a donation. They do so about once a year. The call was polite, but I let him know that I am unlikely to contribute if they use a caller ID that does not reflect who they are. Sounds like the caller was making calls from his work number.