The WF400 is an ideal solution of portable Wireless Voice over IP (WVoIP). It extends the convenience of wireless connection and provides the friendly graphical LCD user interface and 802.11b/g compatibility.

The WF400 allows users to make or receive phone calls in the coverage of 802.11b/g wireless environment and offers high quality voice utilizing cutting-edge WiFi Multimedia (WMM) Quality of Service, echo cancellation, comfort noise generation (CNG) and voice compensation technology.

The WF400 has additional features such as 1.77 65K TFT color LCD, progressive backlight, 2.4G frequency band and 40 Polyphonic MIDI Ring.

 . 1.77 65K TFT color LCD (128*64 Pixel)
 . Compliant with SIPV2 and 802.11b/g
 . progressive backlight supported
 . Support WMM(WiFi Multimedia) Qos/ VAD (Voice Activity Detection)/ CNG (Comfort Noise Generation)/ Echo       Cancellation and Jitter buffer for excellent voice quality
 . Stand by time: 72 hours, talking time: 4 hours

Keypad
Send,End,5-way navigation key, 4-soft keys, dialing
Volume up/down side button, Keypad 0~9,*,#

Wireless
IEEE802.11b/g supported
Frequency band: 2.4G
WEP, WPA/WPA2 supported

Voice Codec
G.711 (A-Law, u-Law)
G.729A/AB
Adaptive Jitter Buffer Management
Voice Activity Detection
Comfort Noise Generation
Echo Cancellation

Application
SIP proxy redundancy
_dynamic via DNS SRV, A records
SMS funtion
NAT Traversal by STUN and UPnP
DHCP Server and Client
IP conflict detection
QoS with Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 (ToS, DiffServ)

Management
Firmware Upgradeable
Web and IVR-driven Management Interface (TFTP, HTTP, HTTPS)
Local and Remote Syslog (RFC3164)
Auto Provisioning and SNMP V2
SNTP Time Synchronization
Multi User Level

Call Features
3-way conference, Music on hold, Call hold/forwarding/mute/transfer/waiting
Caller ID and CWCID, DTMF Relay- In-band, Out-band and SIP info
Hotline, Short Dial, Call Block, Dial Rule etc.