It's just some robodialing scumbag trying to "give" you a "free" medical alert medallion. These crooks spoof their number and change it frequently to try to get around all of us who automatically block their number. Of course I added this one to the blocked list and reported it to my state attorney general, the National Do Not Call List, and called my Congressman's office to complain about the lack of enforceable telecommunications laws.
If these bottom feeders are allowed to continue, our telephones will become useless.