1 VoIP account
Call hold, mute, DND, call recording, hotline
5-way conference call
Redial, call waiting, emergency call
Call forward, call transfer, call return, dial plan
Ring tone selection/import/delete
Set date time manually or automatically
Volume adjustment
Pairing via Bluetooth
3.1″ 248×120-pixel graphical LCD with backlight
Optimal HD audio
Yealink Noise Proof Technology
20-foot (6-meter) microphone pickup range
Built-in 3-microphone array, 360-degree voice pickup
1 x RJ45 10/100M Ethernet port
Built-in Wi-Fi (2.4GHz/5GHz, 802.11.b/g/n/ac)
Built-in Bluetooth 4.0
Intercom
Multicast paging
Anonymous call
Anonymous call rejection
Voice mail
Distinctive ringtone
Call pickup
SIP v1 (RFC2543), v2 (RFC3261)
IPv4/IPv6
NAT traversal: STUN mode
QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS, DSCP
SRTP for voice encryption
Transport Layer Security (TLS)
HTTPS certificate manager
AES encryption for configuration file
Configuration: browser/phone/auto-provision
Auto provision via FTP/TFTP/HTTP/HTTPS
Auto-provision with PnP
Zero-sp-touch, TR-069, SNMP
Reset to factory, reboot
Package tracing export, system log