2N® Sentrio Lobby – Elevator Emergency Communicator for Control Rooms (91378903) Technical Specifications Brand: 2N® Sentrio Series Model Number: 91378903 Application: Emergency responder interface for building lobbies/control rooms—ideal for high-rise buildings (>18 m) to aid trapped elevator passengers  Display & Audio: 7″ touch display with capacitive buttons; full-duplex VoIP communication; text messaging and induction loop support : Video: Live stream from cabin IP cameras (activated only during emergencies to preserve privacy)  Connectivity: 10/100Base-T Ethernet (RJ‑45); supports SIP over UDP/TCP/TLS; HTTPS, RTSP, SNTP client enabled  Power: PoE (802.3af) or 12 V DC adapter; reverse polarity protected  Audio & Video Codecs: Audio: G.711, G.722, G.729, L16/16 kHz; Video: H.264 (Main/Baseline), MJPEG