Didn't leave a message.  I called number back and an automated system answered and asked me to state my name after the tone and google voice would try to connect.  Without stating my name, I waited and after a few seconds there were 4 rings and the automated system stated that google voice wasn't able to connect and to please leave a message.

Received call today. Answered, no response. Blocked number.

Want to by your timeshare

Did not answer. No message. CID=Unknown name. Will block.

No message and from the other notes here (thanks!) probably a phony scam timeshare call.