Caller ID says "Framigham MA". They leave no message.
I call back during business hours (using *67 to block my number). I hear the following, "the jo-jag customer you have called is unavailable to take your call. Please, leave a message after the tone." I am probably wrong about the "jo-jag" segment.
So they have spoofed their caller ID and they don't have the ability to be called back. Smells like a SCAM.