The M16 Wireless Desktop VoIP Phone offers voice over LTE (4G) communications for the mobile workplace. It features a 3.5" 320*480 TFT color screen, 3x6 E-ink BLF/DSS/Speed dial, 2 SIP accounts, and a 3.5mm earphone port. Other key features include a dedicated loudspeaker key, hearing aid compatibility, breathing LED ring, 4G data internet connectivity, backup battery, password-protected advanced menu, and multilingual support. It also includes alarm and calendar, blacklist, Asterisk and BroadSoft platform compatibility, wall mount option, and FoTA upgrades.