| SPECIFICATION | Audio Features
HD voice: HD handset, HD speaker
Smart Noise Filtering
Wideband codec: Opus, G.722
Narrowband codec: G.711(A/?), G.723.1, G.729, G.729A, G.726, iLBC
DTMF: In-band, Out-of-band (RFC 2833) and SIP INFO
Full-duplex hands-free speakerphone with AEC
VAD, CNG, AEC, PLC, AJB, AGCPhone Features
4 VoIP accounts
Call hold, mute, DND
One-touch speed dial, hotline
Call forward, call waiting, call transfer
Group listening, SMS, emergency call
Redial, call return, auto-answer
Local 5-way conferencing
Direct IP call without SIP proxy
Ring tone selection/import/delete
Set date time manually or automatically
Dial plan
XML Browser, action URL/URI
Integrated screenshots
RTCP-XR, VQ-RTCPXR
Enhanced DSS Key Directory
Local phonebook up to 1000 entries
Blacklist
XML/LDAP remote phonebook
Smart dialing
Phonebook search/import/export
Call history: dialed/received/missed/forwarded IP-PBX Features
Busy Lamp Field (BLF), Bridged Line Appearance (BLA)
Anonymous call, anonymous call rejection
Hot-desking, voice mail
Flexible seating
Call park, call pickup
Executive and Assistant
Centralized call recording
Visual voice mail
Call recording Display and Indicator
2.4" 320 x 240-pixel color display with backlight
16-bit depth color
LED for call and message waiting for an indication
Dual-color (red or green) illuminated LEDs for line status information
Wallpaper
Intuitive user interface with icons and soft keys
Multilingual user interface
Caller ID with name and number
Screensaver
Power saving Feature keys
4 line keys with LED
4 line keys can be programmed up to 12 paperless DSS keys (4-page view)
5 features keys: message, headset, redial, mute, hands-free speakerphone
6 navigation keys
Volume control keys Interface
Dual-port Gigabit Ethernet
Power over Ethernet (IEEE 802.3af), class 2
1 x RJ9 (4P4C) handset port
1 x RJ9 (4P4C) headset port Other Physical Features
Color: Classic Grey
Wall mountable
External Yealink AC adapter AC 100~240V input and DC 5V/600mA output
Power consumption (PSU): 2-3W
Power consumption (PoE): 3.5-5W
Dimension (WDHT): 212mm186mm146mm42mm
Operating humidity: 10~95%
Operating temperature: -10~50C (+14~122F) Management
Configuration: browser/phone/auto-provision
Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
Auto-provision with PnP
Zero-sp-touch, TR-069
Phone lock for personal privacy protection
Reset to factory, reboot
Package tracing export, system log Network and Security
SIP v1 (RFC2543), v2 (RFC3261)
Call server redundancy supported
NAT traversal: STUN mode
Proxy mode and peer-to-peer SIP link mode
IP assignment: static/DHCP
HTTP/HTTPS webserver
Time and date synchronization using SNTP
UDP/TCP/DNS-SRV (RFC 3263)
QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
SRTP for voice
Transport Layer Security (TLS)
HTTPS certificate manager
AES encryption for the configuration file
Digest authentication
OpenVPN, IEEE802.1X
IPv6
LLDP/CDP/DHCP VLAN
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