Product Details ATA-171P


Quick Overview

Single line VoIP adaptor with landline backup.

Product Description

ATA-171P is one-port analog telephone adapter plus one PSTN backup life line, which allows user to dial and receive PSTN or VoIP call in one identical phone set.

Connection Diagram

Connection Diagram

Warranty Information

Under the Competition and Consumer Act a 12 month warranty applies to this hardware

Physical interface


  • WAN - for connecting to HUB or ATU-R directly
  • LAN - for PC connection


  • Phone - for connecting to handset
  • PSTN - for connecting to wall socket

Dimension: 9.9 X 9.9 X 3.2 cm

Network and 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 enabled


TFTP Client/DHCP Client/PPPoE Client

Telnet/HTTP Server

DHCP Server for LAN Port

NAT traversal

  • STUN

Support ToS


  • HTTP 1.1 basic/digest authentication for Web setup
  • MD5 for SIP authentication (RFC2069/RFC2617)

Voice feature

Voice codec

  • 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

VAD : Voice activity detection

CNG : Comfortable noise generation

LEC : Line echo canceller

Packet Loss Compensation


  • 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


AC Power

  • 100~240 Input 12V dc/output


  • Temperature : 0°C~40°C
  • Humidity : 10%~90%RH