Справочник Пользователя для Cisco Systems 3545 PRI
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Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.6
OL-17011-01
Chapter 1 Functionality
About Cisco Unified Videoconferencing 3545 Gateway Applications and Topologies
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
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
Multimedia Conferencing through the Gateway
Typical multimedia conferencing applications include:
•
Business video conferencing
•
Distance learning
•
Telemedicine
•
Video-enabled call centers
•
Telecommuting
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H.323
endpoint
H.323
terminal
ISDN
phone
phone
Regular
phone
phone
H.323
endpoint
Cisco
chassis/unit
with serial
gateway
IP network
PSDN
ISDN