Computer Hardware User Manual

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Sets the audio and video combination to use, and
the overall media bit rate.
Typically, when two streaming rates are used,
one is set up as a low bit rate combination and the
other 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.
The available options vary depending on which
media player you have chosen.
Choose whether to use the specified streaming
rate for multicast.
If this is set to Enabled then for any conference
with Streaming set to "Multicast" or "Unicast and
multicast", multicast audio and video streams will
be transmitted according to the corresponding
Streams setting.
Setting any Multicast parameters to "Enabled" will
only be useful if the multicast media IP addresses
and port numbers are also configured - see
below.
It is not possible to use Windows Media Player to
stream conferences in multicast mode.
Identifies the range of IP addresses to which
multicast streaming media should be sent.
If this address range is not configured, the MCU
cannot transmit multicast conference media.
Sets the range of port numbers to which the
media will be sent.
This UDP port number range is used in
conjunction with the Media transmit IP address.
You must set both the start and end port numbers
to transmit multicast conference media.
Identifies the protocol used by Windows Media
Player to stream data. Note that v11 only
supports HTTP; it no longer supports MMS over
UDP or MMS over TCP.
MMS over UDP is a low latency/ high
throughput protocol, while MMS over TCP
includes extra reliability, though extra processing
power is required. Both use the streaming port,
so if a restrictive firewall is present HTTP may be
necessary.
Auto negotiation attempts to open the most
efficient connection, switching protocols if unable
to do so, but on some systems this is not efficient.
Codian recommends that you select to use
UDP/TCP/HTTP rather than auto-negotiation.