Cisco Systems 3545 PRI manual About Point-to-Point Conferencing, About Multipoint Conferencing

Chapter 1 Functionality

About Cisco Unified Videoconferencing 3545 Gateway Applications and Topologies

About Point-to-Point Conferencing

The Cisco PRI gateway enables direct video, voice, and data communication between an H.320 (ISDN) terminal and H.323 (IP) terminals at bandwidths of up to 1472 Kbps (23B bonding for T1) and up to 1920 Kbps (30B bonding for E1).

Figure 1-2

H.323

terminal

H.323

endpoint

Point-to-Point Conferencing through the Gateway

IP network

ISDN

H.323

Ciscoterminal chassis/unit

with serial

gateway

157175

About Multipoint Conferencing

Together with the Cisco MCU, the Cisco PRI gateway enables H.320 ISDN terminals to participate in a mixed ISDN-IP multipoint multimedia conference with IP network endpoints (see Figure 1-3).

For example, when an H.320 ISDN terminal wants to participate in a multipoint conference with H.323 IP endpoints, the H.320 ISDN terminal can either join the multipoint conference by dialing to the gateway, or be invited into the conference by one of the participating IP endpoints. In either case, the gateway connects the ISDN terminal to the Cisco MCU, enabling it to participate in the multipoint conference.

Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.6

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