One-Key Call Broadcast Intercom Terminal 1. Supports SIP protocol 2. Supports MQTT IoT protocol 3. Supports high-fidelity broadcast media streaming 4. Extendable as a Bluetooth gateway, supporting parameter reporting from physiological wristbands and Bluetooth speaker connectivity; 5. Extendable as an IR infrared remote control gateway, supporting storage and transmission of infrared remote control signals; 6. Supports AI voice interaction 7. Supports PTT broadcast intercom and full-duplex broadcast intercom 8. Supports extension of wired emergency intercom button access 9. Supports remote voice capture function and sound alarm threshold setting 10. Supports extension of LCD display 11. Supports remote control of input and output volume levels 12. Supports rich program source playback in MP3 and WAV formats. Supports transmission of multiple audio formats such as M4A, AAC, FLAC, OGG, OPUS, MP3, AMR, etc. 13. Supports 1 channel of 10A relay switch output and 1 channel of switch input 14. Supports IPC as a video surveillance terminal 15. Supports PoE and daisy-chain networking