▁it ▁clear ▁in ▁July ▁ 2 0 1 3 ▁that ▁his ▁aim ▁was ▁to ▁ensure ▁that ▁by ▁the ▁end ▁of ▁ 2 0 1 3 ▁all ▁I SP s ▁would ▁have ▁a ▁filtering ▁system ▁in ▁place . ▁As ▁a ▁result , ▁three ▁of ▁the ▁Big ▁ 4 ▁major ▁I SP s ▁( T alk T alk , ▁Sky ▁and ▁B T ) ▁began ▁applying ▁default ▁filtering ▁to ▁new ▁customers ▁in ▁ 2 0 1 3 ▁with ▁the ▁fourth ▁major ▁I SP , ▁Virgin , ▁doing ▁so ▁in ▁February ▁ 2 0 1 4 . ▁Default ▁filtering ▁of ▁existing ▁customers ▁was ▁implemented ▁by ▁all ▁four ▁major ▁I SP s ▁during ▁ 2 0 1 4 ▁with ▁the ▁aim ▁of ▁ens uring ▁that ▁the ▁system ▁applied ▁to ▁ 9 5 % ▁of ▁all ▁households ▁by ▁the ▁end ▁of ▁the ▁year . ▁ ▁T alk T alk ▁already ▁had ▁content - control ▁software ▁available ▁to ▁comp ly ▁with ▁government ▁requirements . ▁Their ▁Home Sa fe ▁internet ▁filtering ▁system ▁was ▁introduced ▁in ▁May ▁ 2 0 1 1 ▁as ▁an ▁opt - in ▁product ▁and ▁was ▁used ▁for ▁default ▁filtering ▁of ▁new ▁customers ▁from ▁March ▁ 2 0 1 2 . ▁Home Sa fe ▁was ▁pra ised ▁by ▁Camer on ▁and ▁is ▁controlled ▁and ▁operated ▁by ▁the ▁Chinese ▁company ▁H ua wei . ▁After ▁initial ▁resistance ▁other ▁I SP s ▁had ▁to ▁commission ▁new ▁filtering ▁systems ▁to ▁ful fil ▁Government ▁dem ands . ▁Some ▁smaller ▁I SP s ▁expressed ▁their ▁rel uct ance ▁to ▁take ▁part ▁in