No message, blocked

Called but did not leave message on my cell.  I'm also in the 408 area code.

Called a second time.  Still no message.  One more time and then <plonk>.

No message left

And a third time.  This time I answered but muted the microphone.  No sound, no nothing.  So I called it back using my work phone (CID sends out general switchboard number and not my extension).  Got a recording that the phone number is not in service, so <PLONK>!  Do yourself a favor and block this number by any means possible.