Note:

• The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
• These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
• These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.

Audio Features
HD voice: HD handset, HD speaker
Wideband codec: G.722
Narrowband codec: G.711(A/μ), 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
12 VoIP accounts
One-touch speed dial, redial
Call forward, call waiting
Call transfer, call hold
Call return, group listening
Mute, auto answer, DND
3-way conference call
Direct IP call without SIP proxy
Ring tone selection/import/delete
Hotline, emergency call
Set date time manually or automatically
Dial plan
ML Browser, 
ction URL/URI
RTCP-XR （RFC3611）,VQ-RTCPXR（RFC6035）

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
 
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 recording

Display and Indicator
2.7" 192x64-pixel graphical LCD with backlight
LED for call and message waiting indication
Dual-color (red or green) illuminated LEDs for 
line status information
Intuitive user interface with icons and soft keys
National language selection
Caller ID with name, number
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
Dual-port Gigabit Ethernet
1xRJ9 (4P4C) handset port
1xRJ9 (4P4C) headset port 
1XRJ12 (6P6C) EHS port
Power over Ethernet (IEEE 802.3af), Class 2
 
Other Physical Features
Stand with 2 adjustable angles 
Wall mountable
External universal AC adapter (optional)：
AC 100~240V input and DC 5V/1.2A output
Power consumption (PSU): 1.4-3.9W
Power consumption (PoE): 2.1-5.9W
Dimension(W*D*H*T):
212mm*189mm*175mm*54mm
Operating humidity: 10~95%
Operating temperature: -10~50°C
 
Package Features
Qty/CTN: 5 PCS
N.W/CTN: 6.4kg
G.W/CTN: 7.0kg
Giftbox size: 246mm*223mm*120mm
Carton Meas: 627mm*256mm*235mm
 
Management
Configuration: browser/phone/auto-provision
Auto provision via FTP/TFTP/HTTP/HTTPS
for mass deploy
Auto-provision with PnP
Zero-sp-touch, TR-069
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 
Transport Layer Security (TLS)
HTTPS certificate manager
AES encryption for configuration file
Digest authentication using MD5/MD5-sess
OpenVPN, IEEE802.1X
IPv6