Called and didn't answer, they left no message

called and left no message twice today when I ignored the call
-- might be a medic alert scam targeted on seniors

Calls a few times weekly. No voicemail message.

They keep calling, no message and when I call back they don't identify who they are plus line is always busy so I get animated message. You can be put on do not call list but they want your address full name, all kinds of stuff - I believe it's a scam

call 2 or 3 times a day nothing but silence