Feature︰ This is a improved new type USB phone,despite of its shape looks like any other products on the market,the software and the inner hardware has been rebuilt in order to promote its characterics,more steady and more convenient for using: 1. PC-to-PC and PC-to-phone; 2.Built-in driver, plug and play; 3.USB1.1 compatible; 4.No need sound card external power supply; 5.Complies with H.323, MGCP, SIP protocol; 6.Echo cancellation, noise reduction; 7.Full duplex communication; 8.Application support:Skype, and any other VOIP phone plateform. 9. With LCM display and wall mountable function Product Description USB phone/Voip phone