• Support up to 5 Register Accounts
  • at five SIP Servers
  • Compatible with VGCP Encryption
    protocol to avoid from blocking
  • Suit to end user use with Voice over
    IP Service Provider
  • Auto Provision feature
  • Support PPTP VPN Client
  • WAN and LAN support NAT feature



ATA172plus and ATA171plus are two analog phones and one
analog phone set SIP device which allow user to make or
receive VoIP call through Internet Telephony service provider.
This device is suitable for single user for ITSP service provider
to install at home or office with affordable price and
convenience installation.

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