Cisco ISDN GW 3241 Manual de usuario descargar pdf (Pagina 60)

Streaming (MCU and IP VCR)

Each conference also has a setting for streaming which is only applicable if the MCU as a whole has

streaming enabled. If both the MCU and the conference have been set up for multicast streaming then the

conference will be streamed at the rates set up in the

Settings > Streaming page.

Streaming ad hoc conferences

Ad hoc conferences can never be streamed in multicast mode, but if the MCU has streaming enabled, you

can also enable unicast streaming for ad hoc conferences in the Streaming page. Go to

Settings >

Streaming and see the online help topic “Configuring streaming settings”.

Port allocation when streaming

Streaming a conference uses one video port of your MCU's port allocation however many participants are

streaming: only one video port is used per conference whatever the combination of bit rates etc. Therefore

streaming is affected by port reservation — see “Port reservation (MCU only)” on page 27.

Content channel streaming

From v1.4, the content channel can now be seen by streaming viewers, even if the MCU does not have the

optional web conferencing feature key (see the next section). However, without the feature key the content

channel appears as another pane in the view, rather than as a separate (big) window within users' web

browsers.

When playing back a recording or viewing a conference that includes a content channel on a browser, the

user can choose whether to include the content channel. To see the content channel, java must be installed.

(For more information about the content channel see Chapter 9‚ “Using data”.)

You can set up to two codec and bit rate combinations for streaming and you need to be sure

that the settings you pick do not flood the network when multicast streaming is used.

Typically, when two streaming rates are used, one is set up as a low bit rate combination and

the other is configured to use a higher bit rate. This enables those users with a low bandwidth

connection to achieve useful streaming while at the same time allowing those with a high

bandwidth link to take advantage of enhanced video.

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Cisco ISDN GW 3241 Manual de usuario Pagina 60