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            SkyPhone B4 –  
              Support Skype, X-Lite, MSN Messenger, Yahoo Messenger, AIM, IPbb, TelTel,  Net2Phone, and any other Internet Telephony software 
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            Overview                
              SkyPhone B4 is a  universal USB Phone Set for PC-based VoIP application. All major PC VoIP  software are supported, including: Skype, X-Lite, MSN Messenger, Yahoo  Messager, AIM, IPbb, TelTel, Net2Phone,etc. With the convenience of integrated  audio, keypad, microphone, and speaker, SkyPhone is a mustdesktop companion for  modern office workers and home users who are with PC most of the time and demand  free or cheapest phone call price
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            Feature List 
              
                - Compatible with Skype, the free PC Internet Phone Service, with tens of  millions of installation 
 
                - Support Skype, X-Lite, MSN Messenger, Yahoo Messenger, AIM, IPbb, TelTel,  Net2Phone, and any other Internet Telephony software
 
                - Absolutely free phone calls among PC users
 
                - Very cheap phone calls to any regular (mobile or fixed) phone in the world
 
                - Less than 2 cent per minutes to major countries such as USA, Canada, China
 
                - Best for home and office: works under firewall and NAT with virtual IP
 
                - Integrated phone set with USB audio, speaker, microphone, and keypad for  natural voice conversation
 
                - Best voice quality with full-duplex and echo-free sound
 
                - Hardware generated DTMF signals for dialing to extension through PBX
 
                - Plug-and-play installation, operating without any external power adapter
 
                - Best phone integration with VoIP soft phone, including
                  
                      - Phone ring for incoming calls,
 
                   
                 
                
                  - Phone off-hook to accept calls,
 
                  - Phone on-hook to finish or to reject calls,
 
                 
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            Technical Specification 
              
                
                  Features  | 
                  Description  | 
                 
                
                  Specification  | 
                  
                    - USB 2.0
 
                    - USB HID and USB Audio 
 
                    - On-board DTMF generation and detection
 
                    - Microphone
 
                    - Keypad
 
                    - Speaker
 
                    - DTMF signal generator
 
                    - Operation    System:Windows 98 /    XP / 2000 / 2003 / 2008 / Vista /Win 7
 
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                  Protocol  | 
                  
                    - Support Microsoft MSN Messenger、NetMeeting、Yahoo Messenger、Skype、ICQ、Ipbb
 
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                  Product content  | 
                  
                    - USB  Phone x 1
 
                    - USB  Phone Driver x 1
 
                    - Product  Color :Silver
 
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                  Weight  | 
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                  Temperature  | 
                  
                    - 0℃ to 65℃  ( Operating ) , -20℃  to 75℃ (Storing)
 
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                  Humidity  | 
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                  Size  | 
                  
                    - 172 L * 50 W * 24 H in mm
 
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                  Certification  | 
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              Application Graph 
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