1-10

Installation and Upgrade Guide for Cisco Unified Videoconferencing 3522 BRI Gateway and 3527 PRI Gateway Release 5.6
OL-17010-01
Chapter 1 Functionality
About Cisco Unified Videoconferencing 3500 Gateway Applications and Topologies
BRI Gateways

You can connect the BRI gateway to a local private branch exchange (PBX) that provides the BRI

connection (as shown in Figure 1-6), or to a public phone network using an NT1 device (as shown in

Figure 1-7).

Figure 1-6 Connecting the BRI Gateway Directly to a PBX that Provides a BRI Line
Figure 1-7 Connecting the BRI Gateway Directly to a Central Office Switch