About Gateway Ip Network Connections; About Gateway Isdn Network Connections - Cisco 3527 PRI G Installation And Upgrade Manual

About Cisco Unified Videoconferencing 3500 Gateway Applications and Topologies
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About Gateway IP Network Connections

The Cisco PRI gateway and BRI gateway feature one 10/100Base-T Ethernet IP port (on the front panel)
and connect to an IP segment through a direct connection to a network switch.

About Gateway ISDN Network Connections

The Cisco BRI gateway features four BRI ISDN connections. Each BRI line provides two B channels
and one D signalling channel.
The Cisco PRI gateway features configurable E1/T1 PRI ISDN connections. When configured as an E1
connection, each port provides 30 B channels and one D signaling channel. When configured as a T1
connection, each port provides 23 B channels and one D signaling channel. The type of line available
depends on your local ISDN provider. You configure the gateway PRI port to an E1 or T1 interface
accordingly. In addition, you can choose to activate only specific channels by using fractional channel
selection.
Installation and Upgrade Guide for Cisco Unified Videoconferencing 3522 BRI Gateway and 3527 PRI Gateway Release 5.6
1-8
Mixed ISDN-IP Multipoint Multimedia Conference
IP
network
IP
IP phone
Cisco Unified
Videoconferencing Gateway
Cisco Unified
Videoconferencing MCU
IP
IP phone
ISDN
Chapter 1 Functionality
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