1-7
Installation and Upgrade Guide for CiscoUnified Videoconferencing 3522BRI Gateway and 3527 PRI Gateway Release5.5
OL-14910-01
Chapter1 Functionality About CiscoUnified Videoconferencing 3500Gateway Applications and Topologies
Figure 1-1 Multimedia Conferencing through the Gateway
Typical multimedia conferencing applications include:
•Business video conferencing
•Distance learning
•Telem edic ine
•Video-enabled call centers
•Telec ommu ting
About Point-to-Point Conferencing
The Cisco BRI gateway enables direct video, voice, and data communication between an H.320 (ISDN)
terminal and H.323 (IP) terminals at bandwidths of up to 5 12 Kbps (4 BRI lines) using bonding mode 1
(see Figure 1-2).
The Cisco PRI gateway enables direct video, voice, and data communicat ion between an H.320 (ISDN)
terminal and H.323 (IP) terminals at bandwidths of up to 1472 Kbps (23B bonding for T1) and up t o
1920 Kbps (30B bonding for E1).
Figure 1-2 Point-to-Point Conferencing through the Gateway
157174
H.323
e
ndpoint
H.323
terminal
ISDN
phone
Regul
ar
phone
H.323
e
ndpoint Cisco
chassis/unit
with serial
gateway
IP network PSDN
ISDN
157175
H.323
t
erminal
H.323
terminal
H.323
e
ndpoint Cisco
chassis/unit
with serial
gateway
IP network
ISDN