Table of Contents
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Chapter 1
Functionality
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•
About Multimedia Conferencing
The Cisco PRI gateway enables H.323 endpoints on the IP network to communicate with an H.320
terminal, an ISDN phone, or a regular phone on a circuit-switched public network without having to
connect directly to these networks. The gateway allows all IP network terminals to support video
conferences without connecting every desktop computer to an ISDN line (see
Figure 1-1
H.323
endpoint
H.323
endpoint
Typical multimedia conferencing applications include:
•
•
•
•
•
Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.5
OL-14912-01
Conferencing over leased lines (see the
page
1-12)
Communicating with legacy MCU equipment (see the
section on page
1-12)
Multimedia Conferencing through the Gateway
IP network
Cisco
chassis/unit
with serial
gateway
Business video conferencing
Distance learning
Telemedicine
Video-enabled call centers
Telecommuting
About Cisco Unified Videoconferencing 3545 Gateway Applications and Topologies
"About Conferencing via Leased Lines" section on
"About IP-to-Legacy MCU Conferencing"
PSDN
ISDN
H.323
terminal
Figure
1-1).
Regular
phone
ISDN
phone
1-7
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