Spesifikasi :

Support SIP 2.0 ( RFC 3261) , TCP/ UDP/ IP, RTP/ RTCP, HTTP, ICMP, ARP/ RARP, DNS,
DHCP, NTP, PPPoE, STUN, UPNP, TFTP, etc.
- Powerful Digital Signal Processing ( DSP) technology to ensure superior audio quality
- Support various codecs including G.711 ( PCM a-law and u-law) , G.723.1
( Option) , G.729A, G.726 ( Option) and Ilbc( Option)
- Support standard encryption and authentication ( DIGEST using MD5, MD5-sess)
- Support for Layer 2 ( 802.1Q VLAN, 802.1p) and Layer 3 QoS ( ToS, DiffServ, MPLS)
- Support Silence Suppression, VAD ( Voice Activity Detection) , CNG
( Comfort Noise Generation) , Line Echo Cancellation ( G.168) , and AGC ( Automatic
Gain Control)
- Support automated provisioning for mass deployment , RTP and TLS ( pending) for
security protection
- Support automated NAT traversal without manual manipulation of firewall/ NAT
- Support numeric Caller ID Display, Hold, Transfer, Forward, 3-way Conference,
in-band and out-of-band DTMF, Download Phone Book( XML, LDAP, up to 100 items) ,
Call Waiting, Call Log, Off-hook Audio Dial, Audio Answer, Downloadable Ringtones,
Sever Redundancy and Fail-over Support.

Support syslog, full duplex hands-free speakerphone with advanced acoustic echo
cancellation, redial, volume control, voice mail with indicator, downloadable ring tones.
- Provide easy configuration through manual operation ( phone keypad) ,
Web interface or automated centralized configuration file via TFTP or HTTP
- Support 5 navigation/ menu/ volume keys, 13 dedicated function keys for: HOLD,
SPEAKERPHONE, SEND/ REDIAL, MUTE, TRANSFER, CONFERENCE, and
MESSAGE( with message indicator) , LINE1, LINE2, DND, PLAY, PHONE BOOK, ANSWER
ON.
- Support multi-language: English, Chinese, Japan, etc
Feature Highlights
- 80× 39mm LCD with blacklight support 4 lines with 16 characters every line
- 2 line appearances with LED and 2 independent SIP accounts
- dual switched audio – sensing 10/ 100Mbps network ports with integrated POE( option)
- Support headset jack( option)