... , press tone, revise PPPoE/PPPoA dial attribute, user name and password, restore factory value and so on. Check dangerous voltageFour grades ... the common telephone, call or receiving the telephone call.Specifications ADSL2+StandardsITU G.992.1(G.dmt),ITU G.992.2 ... .hs),ANSI T1.413 issue #2,ITU G.992.5(ADSL2+)Annex LUp channel rate0~1.2MbpsDown channel rate0~24MbpsUp/Down ...