no one talked

calls and hangs up everyday

Caller asked for me by name, when I said yes it's me, how can I help, she said "oh" and I heard something in background and then she hung up.

Looks like a phisher. Text message asking for a call because of "unusual account activity" from Jefferson Financial.

Middle-Eastern accent, says she's from "Law and Investigation." After I got her phone # and "name", I told her that what she was doing was illegal and that I would turn her name and phone number over to the authorities. Told her "You have a great day" and hung up.

phone kept ringing for 4 minutes, then no one there.

PERSON KEEP CALLIN ME AND NOT SAYIN ANYTHING I WANT THIS CALLER TO STOP CALLIN ME

Say's they are calling from Microsoft - broken English and drops the name of someone else at your company and says they are supporting your help desk request. Then they try to get you to confirm email and mailing address (which they have wrong). Asked to remove from their list and stop calling. We'll see....