I am in the UK. I received two calls today at 11.37 GMT and 15.18 GMT from a number which shows up on my mobile as +2031061770. The first was 14 seconds long, and the second 11 seconds long. Each time I said 'Hello? Hello?' only to hear my own voice repeating loudly and clearly. In the background was the noise of chatter - not interference, but the sound of a busy office.
I got 3 today too but I just rubbered it thot it looked dodgy in case u end up payin for the call n if it's India I'm defo blanking it cos I don't know any Indians so canny be important