I am pretty happy thatSmartone Vodafone has done a junk call filter, at the operator level.
While they charge you $15 HKD, I think it is a reasonable price for a simple peace-of-mind. I have yet to see what kind of filtering implementation they are doing.
Ideally, operators should do a "Google Voice" service, so you can report spam with Bayesian filtering.
Bravo, Smartone Vodafone.
