The M379L Wireless Desktop VoIP Phone offers voice over LTE (4G) communications for the mobile workplace. Key features include a 2.8" 320*240 TFT color screen, 2 SIP accounts, 3.5mm earphone port, dedicated loudspeaker key, and hearing aid compatibility. It has a breathing LED ring for messages, 4G data internet connectivity, backup battery, password-protected advanced menu, and multilingual support. Additional features include alarm and calendar, blacklist, Asterisk and BroadSoft platform compatibility, wall mount option, and FoTA upgrades.