... Dot-matrix LCD displaly An USB Type VOIP Phone. Can auto-run softphone(E.X: X-Pro,X-Lite ... inside, don't need to install any softwares,auto-run 2.Four row Dot-matix LCD display,easy ... calling between PC-to-PC and PC-to-Phone;4.Echo cancellation,noise reduction,full duplex communication; ... 5.Incoming/outgoing call shows,phone ring for all incoming calls,convenience for lifting; ...