We provide free internal voice communication for enterprise and enable free mobile office communication for employees by leveraging free Skype or LINE service. Free communication between branch offices. Employees' mobile phones are their office desk phones even when they are not in office. Employees out of office can call back office for free. Customers and suppliers contact office for free anytime and anywhere! Adapter - One port USB adapter for Skype or LINE                 - Use office desk phones for Skype or LINE calls                     - SkyATA(Skype), SkyBox S1(Skype + PSTN)                     - LineATA(LINE or Skype), LineBox (LINE or Skype＋PSTN)                 - Free-forward office incoming calls to mobile               phone Skype or LINE                     - M-office(Skype), LineOffice(LINE), LineOffice Plus(LINE or Skype) Gateway - Multi-port Skype gateway for enterprise(2~16 ports)                  - Employees use desk phones for Skype calls                     - SkyGW4C-S 4 port FXS Skype gateway for PBX analog trunk lines or                       regular phones                      - SkyGWO 4 port FXO Skype gateway for PBX analog extension lines                       or carrier landlines                  - Free-forward office incoming calls to mobile                phone Skype                     - SkyGWO 4 port FXO Skype gateway for PBX analog extension lines                       or carrier landlines FUP1 - Dedicated USB audio controller for VoIM/VoIP application. Built-in PCM             interface for direct connect with SLIC or DAA IC for telecom application.             Support USB FXS and USB FXO dongle hardware and software SDK.