The system offers 1080P30 people+content shared video conferencing. It also supports
full-HD dual stream to demonstrate documents or videos, a development that significantly improves the user conferencing experience.

Optimal HD

The Yealink VCS Phone has several built-in microphone arrays and supports 360 degree
voice pickup. With an optional expansion microphone KIT, the voice pickup range can
be extended to up to 5 metres. 14KHz CD level broadband audio quality, plus a number
of new leading-edge professional voice processing technologies, guarantee users an
excellent audio experience.

Outstanding User Experience

Yealink VC120-12X makes maximum use of its advanced features to provide an outstanding
user experience. Yealink supports intelligent searching when making calls. During a call,
you can adjust the screen layout as you wish. In addition, using the dual-screen display
you can show whatever you like on a second screen at full size. This system also
supports video recording and screenshots to record conferences more efficiently. An
outstanding user experience leads to lower learning costs and higher efficiency.

High Interoperability

Yealink VC120-12X supports SIP and H.323 and is compatible with the industry’s major
system and terminal vendors, introducing an important cost-effectiveness and flexibility
that helps users to expand their businesses. Interconnection is also possible with other
devices, such as video phones, tablet computers and smartphones. Users can access
video conferencing at anytime and anywhere at their convenience.

Video Standard and Network Suitability
• H.264 High Profile, H.264, H.263
• Bandwidth dynamic adaptive adjustment
• Forward Error Correction (FEC), anti 8% video
and 20% audio packet loss
• Shared content and audio preference strategy
• Bandwidth Auto adaptive/Protocol Auto
adaptive/Audio/Video call Auto adaptive

Audio Input
• 1 x Yealink VCS Phone VCP41
• 1 x Yealink Array Microphone VCM30 (optional)
• VCS Phone with 2 CPE80 Expansion Microphones
• 1 x Line-in (3.5mm)

Audio Output
• 1 x Yealink VCS Phone VCP41
• 1 x HDMI
• 1 x Line-out (3.5mm)

Audio Features
• Audio Codecs: G.722.1C, G.722.1, G.722, G.711 u/a
• Audio technology: AEC, VAD, CNG, PLC, AJB, AGC

Call Features
• Compatible with multiple cloud platforms
（Yealink/Starleaf/zoom/Pexip/BlueJeans/Mind）
• 8-party 720P calls (asymmetric) with multipoint license
• Dual 1080P30: people+content sharing
• Layout: full-screen, equal, one big/one small
• Dual displays and ‘focus’ feature
• Audio/Video recording and playback
• Screenshots in USB flash drive
• Sleep mode, DND, call statistics
• Meeting password, Anti-attack
• Auto answer, mute, and call waiting
• Smart Dialing
• Local directory:
500 entries + 100 meeting entries
• Call History: all/missed/received/dialed
• LDAP phonebook
• Multi-language support

Standard Communication Protocol
• H.323/SIP
• Dual stream protocol: H.239/BFCP (SIP)
• FECC: H.224/H.281
• H.323 protocol suite:
H.225, H.241, H.245, H.235 v3
• Gatekeeper account and SIP account

Network and Security
• TCP/IP & RS232 with API support
• TCP/IP (IPv4/IPv6), DHCP/stastic IP
• HTTP/HTTPS web server
• SRTP/TLS, AES encryption
• QoS: 802.1p/Q, Diff-serv
• IEEE802.1X, LLDP-MED, VLAN
• Time and date synchronization using SNTP
• Built-in certificate

NAT and Firewall Transversal
• NAT/STUN/ICE
• Yealink Intelligent Firewall Traversal
• OpenVPN
• H.460

Configuration Management
• Configuration via browser/display
• Firmware upgrading, factory resetting
• Export or import configuration
• SNMP, audio/video and network diagnosis
• Package tracing and system log exporting

User Interface
• 1 x 10/100/1000M Ethernet
• 2 x HDMI,
1 x DVI (Camera/VCA70/VCB20),
1 x VGA
• 1 x Yealink Audio port (RJ-45)
• 1 x Line-in (3.5mm)
• 1 x Line-out (3.5mm)
• 1 x power port
• 2 x USB2.0 port
• 1 x power key
• 1 x security lock slot
• 1 x reset slot

Other Physical Features
• External universal AC adapter：
AC 100~240V input and DC 19V/3.42A Output
• Power consumption (PSU): Idle＜2.8W,
normal operating: 24W; MAX: 30W
• Dimension (W.D.H):
Codec: 330mm x 183mm x 40mm;
Phone: 320mm x 260mm x 52mm;
Camera: 282mm x 152mm x 159mm;
Remote control: 190mm x 55mm x 24mm
• Operating humidity: 10~95%
• Storage temperature: -10~50°C

Package Features
• N.W/CTN: 7.2kg
• G.W/CTN: 8.4kg
• Carton Meas: 418mm x 350mm x 420mm