Seongnam’s Hanguk Jeongbo Tongshin Gisul Hyeophoe (TTA) supports testing related to Wi-Fi, Bluetooth, NFC, and home networks. It also holds standardization meetings and certifies equipment. Parking is available on the first floor, and the building has conference rooms, meeting rooms, training rooms, and a training support system. The basement parking ramp is narrow, and the parking area is limited, so take care when using it.