Telephony Specification:

Voice Codec: G.711(A-law /μ-law), G.729 AB, G.723 (6.3 Kbps / 5.3Kbps)

FAX support : T.30 / T.38

Echo Cancellation: G.165/G168

FXO Caller ID detection (SC-16,SC-24):DTMF & FSK

Answer supervision :

Adjustable AC Termination Impedance : 600 / 900 OHM and complex Impedance

Life-Line support (IP/ power failure over relay)

Polarity Reversal : Type I and Type II

12K Hz & 16K Hz Metering

IP Specfications:

H.323 v2/v3/v4 and SIP (RFC 3261) , SDP (RFC 2327), Symmetric RTP,

STUN (RFC3489), ENUM (RFC 2916), RTP Payload for DTMF Digits (RFC2833), Outbound Proxy Support

LAN: NAT, Virtual Server, DHCP Server

WAN: PPPoE client, DHCP client, Fix IP Address, DDNS client

Network Address Translation: Providing build-in NAT router function.

Call Features

Voice channels status display

Direct Dialing Mode: peer to peer call (support IP Address Call or Domain Name Call)

Register Call Mode: register to H.323 Gatekeeper or SIP Proxy Server

Adjustable volume: - 9 db ~ 9 db

Silence Compression

Auto Dial for speed

Dynamic Jitter Buffer

Configuration & Management:

Web-based Graphical User Interface

Remote management over the IP Network

FTP firmware upgrade

Backup and Restore Configuration file

General Specification:

AC power : AC100V-240V, DC12V/1.5A,50/60 H

Humidity: up to 90% non-condensing

Emission: FCC Part 15 Class B, CE Mark

Dimension : 260 x 130 x 35 mm ; Weight: 900g (Aluminum )