The M19 SIP IMS Desk Phone over LTE Network provides voice over LTE (4G) communications for the mobile workplace. It features a 6" 1024*768 TFT color touchscreen, 5M camera, 10 SIP accounts, 3.5mm earphone port, and USB-A OTG. Additional features include a dedicated loudspeaker key, hearing aid compatibility, breathing LED ring, 4G data internet/WiFi/WAN connectivity, backup battery, password-protected advanced menu, and multilingual support. The phone also supports alarm and calendar, blacklist, Asterisk and BroadSoft platform compatibility, wall mount, and FoTA upgrades.