This is still an active scam. I received two identical calls today on my landline, one at 10am and one at 2pm. Both from an Indian call centre. The first number showed as "International" and the second was randon UK number.
I played along with the first one for about 5 minutes until she wanted me to allow access to my computer at which time I informed her that I was aware of their scam and that they weren't even very convincing! I planned to play along with the second call too but they disconnected the call before I could start the game - too bad.
They are still describing themselves as BT Openreach so it looks like they haven't learned much in the last year!