Interface

2 RJ-45 ports (Ethernet 10/100 Base-T)
1 RJ9 earphone jack
1 FXO port to connect PSTN line(only for L series)
1 usb port
802.11n 2T2R (Only for W series)
Support PoE comply with IEEE802.3af(optional)

Display

320×240 -TFT color screen
Red color LEDs for call and message indication

Phone Keys

4 soft keys
13 function keys:MENU, MUTE ,SMS, HOLD,Volume+/-,Transfer,
3-way conferencing, Hands free Redial and so on.
5 navigate key
12 Dialing Buttons (0~9, *, #),
32 Multi-function keys

Power Supply

AC/DC Adapter
  * AC Input: 100~240V, 50~60Hz
  * DC Output: 5V, 1A

Environmental 

Operation Temperature: 0~50 Degree C
Storage Temperature: -25~ 85 Degree C
Relative Humidity: 10%~90% No Condensing

Dimension

18.8cm(L)*18.5cm(W)*3.7cm(H)

Unit Weight 

625g (No packet)

Software Features

Audio Codec Features

G.711 (A-Law, μ-Law)
G.722（HD）
G.723.1
G.729AB
G.726
iLBC
Adaptive Jitter Buffer Management
Voice Activity Detection
Comfort Noise Generation
Echo Cancellation

Protocols

SIP V2 (RFC 3261,3262,3263,3264)
SDP (RFC2327)
RTP/RTCP (RFC1889 and RFC1890)
NAPTR for SIP URI Lookup (RFC2915)
STUN (RFC 3489)
ARP/RARP (RFC 826/903)
SNTP (RFC 2030)
TFTP/HTTP/HTTPS for Auto Provisioning
DNS/DNS SRV (RFC1706 and RFC 2782)
IEEE802.1Q VLAN/802.1p and IP TOS
SNMPV2
TR069（TR104/TR098/TR111）

Management 

Firmware Upgradeable
Web Management Interface
Password Management
Local and Remote Syslog (RFC3164)
Auto Provisioning: TFTP, HTTP and HTTPS
SNTP Time Synchronization
Multi User Level
Auto Provision
Support TR069 management mode

Applications

SMS Function
MAC Address Cloning
SIP proxy redundancy
DNS SRV
Direct IP to IP calling
Traversal by STUN
VPN: pptp,l2tp,OpenVPN
QoS with Layer 2 and Layer 3
DHCP Server and Client
IP conflict detection
Support Mutil-Vlan

Call Features

8 lines
Auto Answer
3-way Conference
Music on hold
Call Hold
Call Forwarding
Call Mute
Call Transfer
Call Waiting
Call Pickup
MWI
CID and CWCID
DTMF Relay: In-band, Out-band(RFC2833) and SIP Info
Full-duplex Speakerphone
Hotline
Redial
Dial Plan
Volume adjustment- handset/handfree/speaker/ringing

Phone Features

Customized Ring Tone
SMS (100 records)
Call History ( 100 records )
  - Most Recently Missed Calls
  - Most Recently Received Calls
  - Most Recently Dialed Numbers
Phone book (500 records )