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About Us
Revenue $ 4,000,000 USD (2014) Employees 22 (12 researchers) Key Accounts 
- 2014
- To Develop Connected and Satellite Solutions to Support Integrated Service
- 2013
- To Supply Middle Size IP-PBX for Ship/Marine
- 2012
- To Develop Middle/Large Capacity IP-PBX and Related S/W
- 2011
- To Reach 10,000 Enterprise Customers in Korea
- 2010
- SKB, LGU+, KCT, ONSE BMT/IOP Passes
- 2009
- KT IOT Passed
- 2008
- KT BMT for IP-PBX
- 2007
- Research Laboratory Founded in Daejun
- 2006
- To Develop Small IP-PBX & Call Agent for KT
Coretree's IP based cutting edge technology can manipulate the next generation of IoT environment
Our leading IP technology with embedded system, software, and solution supports various requirements of the global market.
