Yealink 4 Inch Touch Screen Cost Effective ZOOM Certified Ph

Phone Features:
Sign in with user credentials
Web Sign-in
Time display
Phone lock/unlock
Emergency call
Accessibility
Screensaver
Display and Indicator:
LCD screen: 4”480×800 capacitive touch screen, 5 points multi-touch surface
Zoom User Interface
Multi-language user interface
Full keyboard
LED for call and message waiting indication
Interface:
Dual-port Gigabit Ethernet
Power over Ethernet (IEEE 802.3af), class 3
1 x USB2.0 port: USB headsets, Bluetooth headset (Only with Dongle), Wi-Fi (Only with Dongle)
1 x RJ9 (4P4C) handset port
1 x RJ9 (4P4C) headset port
1 x Security lock slot
Network and Security:
IPv4/IPv6/IPv4&IPv6
IP Assignment: Static/DHCP
HTTPS web browser
Time and date synchronization using SNTP
Transport Layer Security (TLS)/ Secure Real-time Transport Protocol (SRTP)
HTTPS certificate manager
IEEE802.1X support