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Vigor 2820VSn ADSL & ISDN Router Firewall
  • ADSL/ADSL2+, ISDN, 3G and Broadband Router
  • Two ISDN2e (BRI) Interfaces
  • First ISDN Interface supports either:
    • Dial-up Internet connection (with no ADSL)
    • ISDN Backup in case of ADSL/ISP failure
    • S0-Bus Mode for internal ISDN phones for VoIP
  • Secondary ISDN Interface supports:
    • S0-Bus for internal ISDN phones for VoIP
  • Comprehensive and Robust Firewall
  • VoIP port with PSTN passthrough
  • 802.11n Wireless LAN ('n' models only)
This product has been discontinued.


Vigor 2820VSn ADSL & ISDN Router Firewall

The Vigor 2820VSn is part of the Vigor2820 ADSL router series, with the addition of two ISDN ports. The ISDN interface connects to any compatible ISDN2e service andcan provide either primary internet connection or Dial-up backup for your primary ADSL connection. The Vigor 2820VSn also features an analogue telephone port for VoIP services. All other features of the standard Vigor 2820 model are supported. For WAN-Failover, you can select either ISDN, 3G modem or Ethernet WAN port.

Vigor 2820 Connectivity Schematic
Note : Only one method of Internet backup can be selected at once.