CSP8025UCSP8025U-typeONUproductsfullycomplyIEEE802.3-2005EPONequipmentandtechnicalrequirementsforChinaTelecomV2.1,withcarrier-classoperational,management,andeasytomaintainthecharacteristicsofisacompatibleVoIPphoneEPONHGU(homegateway)device,toprovidebroadbandconnectivitytoprovideuserswithdata,voice,videoandotherservices....)