Touch screen user interface enabling up to 8 programmable keys Graphical 5color TFT screen (1280 x 720) with multi-lingual support High voice quality Full duplex speaker phone Multi-language user interface compatible expansion module available (sold separately) The AudioCodes Microsoft Teams-native C450HD IP phone is a feature-rich, executive high-end business phone for Microsoft Teams. The C450HD is equipped with a large 5color touch screen and integrated Wi-Fi. It is an excellent option for executive office spaces Design Product colour Black Handset type Wired & Wireless handset Product type IP Phone Performance Dual-Tone Multi-Frequency (DTMF) modes SIP info Phone features Call transfer Yes Full duplex Yes Message-waiting indicator (MWI) Yes Call park Yes Caller ID Yes Call waiting Yes Speed dialling Yes Call hold Yes Call forwarding Yes Conference call Yes Redialing Yes Do not disturb function Yes Call pick up Yes Answering machine Yes Lines quantity 8 lines Management feature