The BRI (Basic Rate Interface) is a 4-wire circuit to the switch (Northern Telecom or AT&T). Apple's ISDN card, in addition to the BRI, provides a 2-wire POTS (Plain Old Telephone Service) interface enabling you to connect a standard telephone to the switch via our board for analog services.
Article Change History:
28 Nov 1994 - Reviewed for technical accuracy.
Support Information Services