Introduction, Definitions for Isdn Ports

1. Introduction

The Vigor2820 is an ADSL2+ router with 2nd Ethernet WAN. This 2nd WAN can connect to DSL/Cable modem or fiber media converter for policy-based load-balance, fail-over and BoD (Bandwidth on Demand); it also features advanced bandwidth control mechanism such as IP-layer QoS, NAT Session Limitation, Bandwidth Borrowed, etc., to allow easy, flexible, reliable access control and bandwidth management.

The SPI (Stateful Packet Inspection) firewall uses object-based design to make settings of firewall policies easy. The CSM (Content Security Management) feature allows more precise and efficient access control for URL/Web Content Filtering, IM (Instant Messenger) and P2P (Peer to Peer) applications.

With hardware-based implementation of the VPN protocols, the Vigor2820 supports up to 32 VPN tunnels using advanced protocols such as IPSec/PPTP/L2TP/L2TP over IPSec with AES/DES/3DES for encryption and MD5/SHA-1 for authentication.

Vigor2820 ‘n’ models comply with 802.11n Draft-n standards. They support WEP/WPA/WPA2 encryption and MAC Address Control, Wireless LAN Isolation, and 802.1X authentication. The Wireless Rate Control function can adjust the data rate of each wireless station (client).

Vigor2820 ‘V’ models provide twin analogue phone and one line port. ‘S’ models also support twin ISDN ports that one is fixed as ISDN S0 port for ISDN phone and the other is configurable for ISDN line and phone. It supports multiple SIP registrars with high flexible configuration and call handing options.

Definitions for ISDN Ports

Below shows the names that displayed on front panel of the device and the WEB UI of this device.

ISDN TE (Terminal Equipment) means an interface for transmitting analog signal through Internet between Switching and router. Such interface is also named with ISDN S0 extern in Germany.

ISDN NT (Network Terminator) is a port that used to connect general phone. Such interface is also named with ISDN S0 intern in Germany.

The Phone S0 port on Vigor2820 series is fixed to connect phone forever and the LED on the connecter will light orange always. However ISDN/Phone S0 port on this device is configurable for connecting phone or accessing Internet according to the settings that you adjust on WEB UI (please refer to VoIP>>Phone Setting for detailed information).

Warning: When the orange LED lights (means ISDN NT mode), the ISDN port can be used to connect phone only. Wrong ISDN connection might cause severe damage on your device.