"High-performance DECT IP phone system • High-performance SIP cordless phone system • 2.4"" 240 x 320 color screen with intuitive user interface • Up to 20 simultaneous calls • Up to 10 DECT cordless handsets • Up to 10 VoIP accounts • Support Opus audio codec • Up to 30-hour talk time (in ideal conditions) • Up to 400-hour standby time (in ideal conditions) • Quick charging: 10-min charge time for 2-hour talk time • TLS and SRTP security encryption • Noise Reduction System • Headset connection via 3.5 mm jack • Charger wall mountable with PSU"