VoIP KEY FEATURES:

Support H.323 Gatekeeper Registration; SIP Registration and Digest Authentication

Flash Time Programmable

Caller ID Delivery and Detection

Smart VoIP call Dialing Book

AC termination Impedance

Polarity Reversal Detection

NAT Traversal

Smart-QoS Guaranteed

Voice channels status display

H.323 MAC authentication

TELEPHONE SPEC:

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

FAX support : T.30 / T.38

Echo Cancellation: G.165/G168

FXO Caller ID detection: DTMF and FSK

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

Life-Line support (power failure over relay)

Polarity Reversal: Type I and Type II

IP SPEC:

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)

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.

Smart QoS: Guarantee the voice bandwidth

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 Gatekeeperor SIP Proxy Server

Adjustable volume : - 9 db ~ 9 db

Silence Compression

Auto Dial for speed

Dynamic Jitter Buffer

CONFIG & MAMAGEMENT:

web-based Graphical User Interface

RS232 for configuration

Remote management over the IP Network

FTP firmware upgrade

Backup and Restore Configuration files