Welltech VoIP ATA series V.2.1 - Manual (Page 4)

ATA-171/172/171P/171M/171+/172+
User’s Guide
1. Introduction
This user’s manual is for 1-port FXS and 1-port FXO ( FXO only supported in ATA171M ) VoIP
terminal adapter (ATA). This user’s manual will explain the IVR instruction, web configuration, and
command line configuration for the ATA. Before using the ATA, some setup processes are required to
make the ATA work properly. Please refer to the Setup Menu for further information.
Chapter 1.1 Hardware Overview
The ATA has the following interfaces for Networking, telephone interface, LED indication, and power
connector.
1.1.1 Two RJ-45 Networking interface, these two interfaces support 10/100Mps Fast Ethernet. you
can connect one RJ-45 Fast Ethernet port to the ADSL or Switch, and connect the other
one to your computer.
1.2.1 One RJ-11 Type analog telephone jack and line interfaces. You can connect one analog
telephone to the terminal adapter or one PSTN line.
1.3.1 LED Indication: There are three LED indicators in the ATA to show the Power, Register, and
Off-Hook indication.
Chapter 2.1 Software Overview
Network Protocol Tone

Ring Tone

Ring Back Tone

Dial Tone

Busy Tone

Programming Tone

SIP v1 (RFC2543), v2 (RFC3261)

IP/TCP/UDP/RTP/RTCP

IP/ICMP/ARP/RARP/SNTP

TFTP Client/DHCP Client/ PPPoE Client

Telnet/HTTP Server

DNS Client

NAT/DHCP Server Phone Function
Codec

Volume Adjustment

Speed dial key

Phone book

Flash
IP Assignment

G.711: 64k bit/s (PCM)

G.726: 16k / 24k / 32k / 40k bit/s (ADPCM)

G.729A: 8k bit/s (CS-ACELP)

G.729B: adds VAD & CNG to G.729
Voice Quality

Static IP

DHCP

PPPoE
Security

HTTP 1.1 basic/digest authentication for Web setup

MD5 for SIP authentication (RFC2069/ RFC 2617)

VAD: Voice activity detection

CNG: Comfortable noise generator

LEC: Line echo canceller

Packet Loss Compensation

Adaptive Jitter Buffer
QoS
Call Function 
ToS field
NAT Traversal

STUN

Call Hold

Call Waiting

Call Forward

Caller ID

3-way conference
Configuration
DTMF Function 
Web Browser

Console/Telnet

IVR/Keypad

In-Band DTMF

Out-of Band DTMF

SIP Info
SIP Server
Firmware Upgrade

Registrar Server (three SIP account)

Outbound Proxy

TFTP

Console

HTTP