Native support for Microsoft Teams Graphical 5color TFT screen (1280 x 720) with multi-lingual support A 5vertical color touch screen (480 X 854) expansion module for enhanced productivity, accommodating up to 50 contacts with one-click speed dial Touch screen user interface enabling up to 8 programmable keys 8 line, 8 concurrent calls per line Integrated dual band Wi-Fi and Bluetooth The AudioCodes Microsoft Teams-native C455HD IP phone is a feature-rich, executive high-end business phone, packed with the latest technology for delivering a seamless Microsoft Teams experience every time.The C455HD is equipped with a large and intuitive 5color touch screen for exceptional ease-of-use, while stunning HD sound quality ensures that every conversation is productiveand then some. This device is also available as the C455HDDBW, complete with a 5color touch expansion module that really brings your Microsoft Teams meetings to life, as well as dual band WiFi and Bluetooth for wirel