Repeated calls from this number.

another scammer for sure.  I suppose someone actually falls for these lousy theives spiel or they wouldn't do it.  On the rare occasion that I do answer these calls, I give them hell...that is I act reeeeally stupid and
Make them
Repeat themselves over and over until they get so frustrated that they hang up.  This stuff used to get my feathers ruffled but not any more.  It's just my way of fighting back.

Sometimes I speak to them in my own Hindi Indian accent.  Once they catch on they normally start cursing and end the call.

Received several calls .. I have blocked their number.

They call repeatedly, never leave a message, and there's silence when I answer. What's the point?

Some type of prank call - I can hear noise in the background but they hang up.