Audio Features
> HD voice: HD handset, HD speaker
> Hearing aid compatible (HAC) handset
> Audio codec: Opus, G.722, G.722.1, G.722.1C, G.711 (A/μ), G.723, G.726, G.729AB, 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

Video Features
> 720p@30fps HD video call
> Video codec: H.264 High Profile, H.264, VP8
> Yealink CAM50 camera: 2 mega-pixel, plug and play, adjustable, with privacy shutter and LED indicator
> Field of view (FOV): 70.2°
> Self view (local video preview)

 Display and Indicator
> 7" 1024 x 600 capacitive adjustable touch screen
> 5 points multi-touch surface
> Screensaver and Wallpaper
> LED for call and message waiting indication
> Intuitive user interface with icons and soft keys
> Multilingual user interface
> Caller ID with name, number and photo


 Phone Features
> 16 VoIP accounts
>Call hold, call forward
>Call waiting, call transfer
>One-touch speed dial, hotline
>Mute, DND
>Group listening, emergency call
>Redial, call return, auto answer
>Direct IP call without SIP proxy
>Ring tone select/import/delete
>Set date time manually or automatically
>Dial plan, action URL/URI
>RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
>Three-party video conferencing
>Five-party audio/video mixed conferencing
>Data import/export via Bluetooth, email, etc.

 IP-PBX Features
>Busy Lamp Field (BLF)
>Bridged Line Appearance (BLA)
>Anonymous call, anonymous call rejection
>Remote office, hot desking, intercom, paging
>Message Waiting Indicator (MWI)
>Voice mail, call park, call pickup, music on hold
>Call completion, call recording

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

 Feature keys
>27 one-touch DSS keys
> 8 feature keys: message,headset,mute,hold,transfer, video,redial,speakerphone
> Illuminated hands-free speakerphone key

 Interface
>Dual-port Gigabit Ethernet
> Built-in Wi-Fi (2.4GHz, 802.11b/g/n)
> Built-in Bluetooth 4.0+ EDR for
> 1x USB port (2.0 compliant)
> 1 x USB 2.0 port (on the top of the phone) for:Yealink CAM50 camera
> 1 x USB 2.0 port (on the rear of the phone) for:USB flash drive
> 1 x Security lock port
> 1 x RJ9 (4P4C) handset port
> 1 x RJ9 (4P4C) headset port
> Supports up to 3 color-screen expansion modules

Management
>Configuration: browser/phone/auto-provision
> Auto provision via FTP/TFTP/HTTP/HTTPS for mass deployment
> Auto-provision with PnP,Zero-sp-touch, TR-069
> Phone lock for personal privacy protection
> Reset to factory, reboot
> Package tracing export, system log

Other Physical Features
>Wall mountable (optional)
> External Yealink AC adapter (optional): AC 100~240V input and DC 5V/2A output
> Power consumption (PSU): 1.9W-5.7W
> Power consumption (PoE): 2.6W-7.4W
> Dimension (W*D*H*T): 259.4mm*220mm*239mm*42.6mm
> Operating humidity: 10~95%
> Operating temperature: -10~40°C

Network and Security
> IPv4/IPv6
> 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/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 
> Transport Layer Security (TLS)
> HTTPS certificate manager
> AES encryption for configuration file
> Adb encryption authenticated
> Digest authentication using MD5/MD5-sess
> OpenVPN, IEEE802.1X

Package Features
>Qty/CTN: 5 PCS
> N.W/CTN: 9.45 Kg
> G.W/CTN: 10.55 Kg
> Giftbox size: 324 mm*293 mm*128 mm
> Carton Meas: 680 mm*303 mm*332 mm