... ClientVoice code:ITU-T G.711(A-law/m-law),G.723.1,G.729Echo cancellation:ITU-T G.165/G.168,16ms MAXConfiguration: ... line, ADSL LAN Cable Modem;HIP1860(3) double Ethernet model support NAT function,realize users internet connection;Telephone function: Hand ... free talking, Volume adjusting, Ringing tone selection, Call ID, Phone book, Missing incoming call, Incoming call, Outing call.failed outing ...