... USB skype phone,USB voip phone, skype USB phone, PC-to-PC and PC-to-phone operation, Fully compatible with USB1.1and USB2.0 USB skype phone,USB voip phone, skype USB ... volume.5.PC-to-PC and PC-to-phone operation.6.Plug-and-play.7.Fully ... Skype speed-dialing function13.Two-way communication14.USB Audio Device class specification 1.0 compatible15.Support ... connection:ADSL or Cable modem USB skype phone