Answered the call and they hung up less than 2 seconds after, so highly likely it's a telemarketer's robot calling.

I dont usually answer numbers I dont know, but I answered this one....heavy indian accent, he said Hello.... and hung up....

called, and i didnt pick up first time. called back a second time, so i picked up. i said "hello" and it was silent for 10 seconds and hung up. scam i assume.

Called back and said number is disconnected- assuming a scam