BRI (Basic Rate Interface) ISDN is a digital telephony interface (P/N XR0037) used to connect to the telephony provider, legacy PBX or ISDN telephone sets. There are two basic configurations for each BRI ISDN telephony interface port – TE (Terminal) – connects to telephony provider and NT (Network) – connects to ISDN phones (requires power supply option) or legacy PBX (as PSTN ISDN trunks).
The Xorcom BRI ISDN telephony interface module supports three configurations:
Each set of ports can be licensed separately (and remotely) allowing field upgrade.
Each BRI ISDN telephony interface module has dip-switches to set each port to either NT or TE mode. Power for ISDN phones is supplied by the module. Status LEDs for each port indicate active settings (TE or NT) and line status (no activity, layer 1 active, layer 2 active).
One BRI ISDN telephony interface module (with up to eight BRI ports) may be installed in a single Astribank or Xorcom IP-PBX unit. Use the on-line Product Configurator wizard to determine the most suitable configuration to fit your needs.