Physical Interface:

RJ-45

WAN x 1 for connecting to HUB or ATU-R directly

LAN x 1 for PC connection

RJ-11

Phone x 1: ATA-1FXS

Phone x 2: ATA-2FXS

Phone x 1, Line x 1: ATA-1FXS+1PSTN

Specification:

Protocol

SIP v1(RFC2543), v2(RFC 3261)

Outbound proxy

Support backup proxy registration

Support IP or domain name for primary and

Secondary proxy address and auto switching is enabledg

Voice Codecs

G.711 : 64k bit/s (PCM)

G.726 : 16k/24k/32l/40k bit/s (ADPCM)

G.729A : 8k bit/s (CS-ACELP)

G.729B : adds VAD & CNG to G.729

Network

IP/ICMP/ARP/RARP/SNTP

TFTP Client/DHCP Client/PPPoE Client

Telnet/HTTP Server

DHCP Server for LAN Port

NAT tranversal

STUN

Support ToS

Security

HTTP 1.1 basic/digest authentication for Web setup

MD5 for SIP authentication (RFC2069/RFC2617)

Voice feature

VAD : Voice activity detection

CNG : Comfortable noise generation

LEC : Line echo canceller

Packet Loss Compensation

DTMF

In-Band DTMF

Out-Band DTMF

SIP Info

Tone generation

Ring Tone

Ring Back Tone

Dial Tone

Busy Tone

Programming Tone

Call function

Call Hold

Call Waiting

Call Forward

Caller ID

Flash

Volume Adjustment

Speed dial key

Phone book

Call Transfer between FXS, FXO and IP port (ATA-1FXS+1FXO)

Call Forwarding between FXS, FXO and IP port (ATA-1FXS+1FXO)