| Audio Features> Full-duplex hands-free speakerphone with AEC
 > Codecs: G.722 ( Wideband),  G.711(A/μ), G.723, G.729AB, G.726
 > DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO
 > VAD, CNG, AEC, PLC, AJB, AGC
   Directory > Local phonebook up to 1000 entries> Black list
 > XML/LDAP remote phonebook
 > Intelligent search method
 > Phonebook search/import/export
 > Call history: dialed/received/missed/forwarded
   Phone Features > 2 VoIP accounts> Call hold, mute, DND
 > One-touch speed dial, hotline
 > Redial, call return, auto answer
 > Call forward, call waiting, call transfer
 > Group listening, SMS
 > Local 3-way conferencing
 > Direct IP call without SIP proxy
 > Ring tone selection/import/delete
 > Keypad lock, emergency call
 > Set date time manually or automatically
 > Dial plan, XML Browser, action URL&action URI
   IP-PBX Features > Anonymous call, anonymous call rejection> Message waiting indicator (MWI)
 > Voice mail, call park, call pickup
 > Intercom, paging, music on hold
 > Call completion, call recording, hot-desking
   Display and Indicator> 132x64-pixel graphical LCD
 > LED for call and message waiting indication
 > Intuitive user interface with icons and soft keys
 > National language selection
 > Caller ID with name, number
   Network and Security> SIP v1 (RFC2543), v2 (RFC3261)
 > IPv6, open VPN
 > 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
 > IEEE802.1X
 Management
 > Configuration: browser/phone/auto-provision
 > Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
 > Auto-provision with PnP
 > Zero-sp-touch
 > Provisioning server redundancy supported
 > Reset to factory, reboot
 > Package tracing export, system log
   Physical Features>  2xRJ45 10/100M Ethernet ports
 >  31 keys including 4 soft keys
 >  4 LEDs: 1xpower, 2xline, 1xmessage
 >  1xRJ9 handset port
 >  1xRJ9 headset port
 >  Wall-mountable
 >  Power adapter: AC 100~240V input and DC 5V/600mA Output
 >  Power over Ethernet (IEEE 802.3af)
 >  Power consumption: 1.4-2.6W
 >  Net weight: 0.81kg
 >  Dimension: 209mm*188mm*150mm*41mm
 >  Operating humidity: 10~95%
 >  Storage temperature: -10~50°C
 Package Features
 >  Qty/CTN: 10 PCS
 >  N.W/CTN: 10.8KG
 >  G.W/CTN: 12.3KG
 >  Giftbox size: 215mm*200mm*118mm
 >  Carton Meas: 615mm*436mm*208mm
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