Have had series of nuisance calls (03) 8818 3046; (03) 1634 -1638; (03) 8133 7138 - I blocked one (7138) who said in an accent, that he was calling from Telstra about my internet (and apparently he didn't like my come back - 'If there's something wrong with my internet, I'll call Telstra myself - at least I know it won't be a scammer like you", and then the other numbers called and called the same day within a few hours.