Chapter 1 Functionality
About Cisco Unified Videoconferencing 3500 Gateway Applications and Topologies
About Multipoint Conferencing
Together with the Cisco MCU, the Cisco PRI gateway and BRI gateway enable H.320 ISDN terminals to participate in a mixed
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.
Figure 1-3 Mixed ISDN-IP Multipoint Multimedia Conference
|
| IP |
|
| ||
|
| network |
|
| ||
|
|
|
|
|
|
|
H.323 |
|
| IP |
|
| |
Terminal |
|
|
|
| ||
|
|
| IP phone |
|
| |
|
|
|
|
| H.320 | |
H.323 |
|
|
| |||
| Cisco IPVC | Terminal | ||||
Terminal |
| |||||
|
|
| ||||
|
|
| chassis/unit |
|
| |
|
|
|
|
| ISDN |
|
H.323 |
|
|
|
| ||
|
|
| H.320 | |||
Terminal |
| Cisco IPVC | ||||
| Terminal | |||||
|
|
| ||||
|
|
| Gateway |
|
| |
|
|
| Cisco IPVC MCU |
|
| |
H.323 |
|
|
| |||
|
|
|
|
| ||
Terminal |
|
| IP | H.320 | ||
|
| |||||
|
|
|
| |||
|
|
|
|
| ||
|
|
| IP phone | Terminal | ||
|
|
|
|
| ||
H.323 |
|
|
|
|
| |
|
|
|
|
| ||
Terminal |
|
|
|
|
| |
92871
About Gateway IP Network Connections
The Cisco PRI gateway and BRI gateway feature one
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.
Installation and Upgrade Guide for Cisco Unified Videoconferencing 3522 BRI Gateway and 3527 PRI Gateway Release 5.5
|
| |
|