And with the highest supply records, Coretree is the firsthand subcontractor to Korea Telecom in small-capacity IP-PBX field. Also, Coretree is developing enhanced integrated technology for the IoT environment based on its IP/SIP/IMS technologies.

Embedded OS developed by Coretree provides cutting edge technology and it enables to manipulate the next generation of IP environment. Additionally ThinkAgent is a IP Telephony S/W which can leverage IP-PBX to more flexible and smart communication environment.

For example, connected Camera, Video Door Phone, Sensor, and Alarm will provide Smart Office/Home Environment Solution. Also Coretree provides Satellite Internet Solution.