> Revolutionarily new design
> Yealink Optima HD voice
> 2.7" 
192x64-pixel graphical LCD with backlight
> Up to 3 SIP accounts
> 
Paper label free design
> PoE support
> Headset, EHS support
> 
Integrated stand with 2 adjustable angles
> Wall mountable
 
						 
							我們能提供以上產品整合、安裝和支援服務。
如有任何問題或查詢,歡迎致電 3422 8842,我們很樂意為您解答問題!
URL : www.ras.hk
  
					 Phone Features
> 3 VoIP accounts
> One-touch speed dial, 
redial
> Call forward, call waiting, call transfer, call hold
> Call 
return, group listening
> Mute, auto answer, DND
> Call history: 
dialed/received/missed/forwarded
> 3-way confernece call
> Direct IP 
call without SIP proxy
> Ring tone selection/import/delete
> 
Hotline, emergency call
> Set date time manually or automatically
> 
Dial plan, push XML, action URL
IP-PBX and BroadSoft Features
> Busy Lamp Field (BLF), BLF list
> 
Bridged Line Apperance(BLA)/SCA
> Anonymous call, anonymous call 
rejection
> DND & forward synchronization
> BroadWorks 
anywhere
> N-Way Calling, remote office
> Network call logs
> 
BroadSoft call center features
> Message Waiting Indicator (MWI)
> 
Voice mail, call park, call pickup
> Intercom, paging, music on 
hold
> Call recording
Feature keys
> 6 line keys with LED
> 6 line keys can be 
programmed up to 15
    various features (3-page view)
> 5 features 
keys: message, headset, mute,
   redial, hands-free speakerphone
> 4 
context-sensitive “soft” keys
> 6 navigation keys
> 2 volume control 
keys
> Illuminated mute key
> Illuminated headset key
> 
Illuminated hands-free speakerphone key
Interface
> 2xRJ45 10/100M Ethernet ports
> 1xRJ9 (4P4C) handset port
> 1xRJ9 (4P4C) headset port
> 
Power over Ethernet (IEEE 802.3af), Class 2
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
> 
Provisioning server redundancy supported
> Reset to factory, 
Reboot
> Package tracing export, System log
Network and Security
> SIP v1 (RFC2543), v2 (RFC3261)
> NAT 
transverse: STUN mode
> Proxy mode and peer-to-peer SIP link mode
> 
IP assignment: static/DHCP
> 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 and 
video
> Transport Layer Security (TLS)
> HTTPS certificate 
manager
> AES encryption for configuration file
> Digest 
authentication using MD5/MD5-sess
> OpenVPN, IEEE802.1X
> IPv6