011-491-1135

I answered and there was silence at the other end to show that someone was listening to me

Same here - just silence, and calling back doesn't go through.

Been getting this for the past week now. Just silence.

Its been weeks now ,ths number calls me when i picks up nobody speaks,when i call back its does not ring.

Receive call from this number when I call back it does not ring

I receive 2 calls daily from this 011 491 1135 If I answer they stay quiet and end the call If I call back it is engaged or the call just end automatically
Are they getting paid to do calls and pretend they do speak to customers,  where are they from?