USB Skype/SIP/ Vo IP Phone This easy to use USB (Universal Serial Bus) Vo IP phone is great if you just want to get communicating over the internet with Skype/SIP & other compatible applications.A great phone if you are on the go & just want a phone that 'does the job'. Just plug into any USB (Universal Serial Bus) port & you are ready to make FREE calls to anywhere in the world down your broadband connection. If you are on the move with a laptop then just log onto the cloud or a Wi Fi ' Hotspot' & save using the precious minutes on your mobile phone. Compatible with both PC & Macintosh computers. Built in driver means there are no additional drivers to intsall onto your computer. Please note: This USB (Universal Serial Bus) phone has no LCD display Key features USB 2.0 port 16 bit sound card inside the PC can be without Sound Card Support H.323 SIP MGCP etc lots of protocol Support product serial write in With HID (Human Interface Device) Feature Plug & Play to Install USB (Universal Serial Bus) Driver No driver needed for Win 98 SE / Win ME / Win 2000 / Win XP / Mac OS / Mac OS XWith PID (Physical Interface Device) Feature Implement ' Real-Time' verification Compatible with Major PC’s Internet Phone Application Software Provides Ringer Generation for PC to PC Call Through Existing IP phone Applications Optional ITSP Application Software With Credit for PC to Phone Connection A LED to indicate Power & Linking Status Adjustable volume for handset Support E.164 dialing rule Record support; Powered via the USB (Universal Serial Bus) port with no need for a power adaptor Compatible with Skype & other leading service providers. Also works with MSN Mesenger & AOL Instant Messenger.