The "UC 시스템" refers to the Unified Communications system, which integrates various communication tools into a single platform. This system typically combines voice calls, video conferencing, instant messaging, and email to enhance collaboration and streamline communication within organizations. By using the UC 시스템, businesses can improve productivity and reduce the need for multiple communication applications. It allows employees to connect seamlessly, whether they are in the office or working remotely, fostering a more efficient work environment and enabling better teamwork across different locations.