They will call 3 times within 2-4 minutes.  When I answer he says "this is Joe ( or John, etc can you hear me" .  Some  times none says anything. They cal from Dearborn Michigan on several numbers - 313-367 -4212, 4218, 4240 etc.

Yes man i have been getting 3-4 calls a day from 313-367-42** numbers as well they won't quit.  Its the old "can you hear me" scam.  Really pissing me off.  Just going to keep blocking them and hope it stops.

Who are they - it's more than one - cell and landline calls