What is the difference between Multi-Point (Passive Bus) and Point-to-Point?
A. Simply put, Point-to-Point equates to one ISDN Telephone per one ISDN circuit. Where as Multi-Point (or “Passive Bus”) allows more than one ISDN Telephone per Unit. Up to 8 ISDN Telephones can be connected sharing the same ISDN Circuit and NT1 Unit. The most common application for multipoint is when two ISDN Telephones share one NT1 and circuit, each receiving one dedicated B-Channel. This allows the end user to reduce their line cost by half. For more information, please see our ISDN Overview Section.
