• Revolutionarily new design 
• Yealink Optima HD voice 
• Dual-port Gigabit Ethernet
• 4.3" 480 x 272-pixel color display with backlight
• Built-in a USB port, support Bluetooth headset (Through USB Dongle) 
• Up to 16 SIP accounts
• Paper label free design 
• PoE(802.3af) class support
• Headset, EHS support
• Supports expansion modules
• Stand with 2 adjustable angles
• Wall mountable
• Simple, flexible and secure provisioning options
 

Video：

Audio Features
• HD voice: HD handset, HD speaker
• Codecs: G.722, G.711(A/μ), G.723, G.723.1, G.729AB, 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, AGC

Phone Features
• 16 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
• 3-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
• RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
 

Directory
• Loal phonebook up to 1000 entries
• Black list
• XML/LDAP remote phonebook
• Intelligent search method
• Phonebook search/import/export
• Call history: dialed/received/missed/forwarded

 

IP-PBX Features
• Busy Lamp Field (BLF)
• Bridged Line Apperance(BLA)
• Anonymous call, anonymous call rejection
• Hot-desking
• Message Waiting Indicator (MWI)
• Voice mail
• Call park, call pickup
• Intercom, paging
• Music on hold
• Call completion
• Call recording

 

Display and Indicator
• 4.3" 480 x 272-pixel color display with backlight
• 16 bit depth color
• LED for call and message waiting indication
• Dual-color (red or green) illuminated LEDs for line status information
• Wallpaper
• Intuitive user interface with icons and soft keys
• National language selection
• Caller ID with name, number and photo

 

Feature keys
• 10 line keys with LED
• 10 line keys can be programmed up to 27 various features (3-page view)
• 7 features keys: message, headset, hold, mute, transfer, redial, hands-free speakerphone
• 4 context-sensitive “soft” keys
• 6 navigation keys
• Volume control keys
• Illuminated mute key
• Illuminated headset key
• Illuminated hands-free speakerphone key

 

Interface
• Dual-port Gigabit Ethernet
• Support Bluetooth headset through USB Dongle 
• 1xRJ9 (4P4C) handset port
• 1xRJ9 (4P4C) headset port 
• 1XRJ12 (6P6C) EXT port: Supports up to 6 Expansion Modules for an attendant console application
• Power over Ethernet (IEEE 802.3af), class 0

 

Other Physical Features
• Stand with 2 adjustable angles 
• Wall mountable
• External universal AC adapter (optional): AC 100~240V input and DC 5V/2A output
• Power consumption (PSU): 1.8-5.4W
• Power consumption (PoE): 2.1-8.0W
• Dimension(W*D*H*T): 244mm*213mm*185mm*54mm
• Operating humidity: 10~95%
• Operating temperature: -10~50°C

 

Management
• Configuration: browser/phone/auto-provision
• Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
• Auto-provision with PnP
• BroadSoft device management
• 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 transverse: STUN mode
• Proxy mode and peer-to-peer SIP link mode
• IP assignment: static/DHCP/PPPoE
• HTTP/HTTPS web server
• 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 configuration file
• Digest authentication using MD5/MD5-sess
• OpenVPN, IEEE802.1X
• IPv6
• CDP (Cisco Discovery Protocol)

 

Package Features
• Qty/CTN: 5 PCS
• N.W/CTN: 7.6kg
• G.W/CTN: 8.4kg
• Giftbox size: 274mm*255mm*128mm
• Carton Meas: 660mm*286mm*263mm