Detailed Product Description

Main Features:

Supporting SIP, H.323, MGCP, IAX2, net2phone etc lot of protocol  
Supporting Skype, MSN, QQ etc many software  
PnP USB interface, compatible with USB 1.1 and 2.0   
16 bit sound card inside, the PC can without Sound Card  
No driver needed for Win98 SE/Win ME/ Win 2000/Win XP/ Mac OS/Mac OS X  
Clear voice quality  
Built-in DTMF dialing 
Incoming call ringing, easy for answering  
The powered via the USB port with not need for a power adaptor  
Compact appearance design suitable for notebook  
Applicable for wide and compatible multi calling platforms  
Choosing proper platform to communicate between two USB IP phones,
      it can realize conversation free of charge on the earth.   
Review incoming and outgoing call  
ALED to indicate Power and Linking Status
Adjustable volume for handset
Can use for PC to PC and PC to Phone 
Supports Skype etc software 
If the Software supports, it can display the balance.  
The LCD can display Year, Month, Day and Time.  
FCC and CE approval!