Maintenance Manual

Content
Content mode The MCU can decode and then re-encode incoming
content to ensure that the majority of participants
can receive the content. This is the Transcoded
content mode.
The MCU can also retransmit the content without
having to decode it, which is known as Passthrough
mode. In this mode, the incoming content packet
stream is repackaged and sent to endpoints in the
conference that are capable of decoding the original
stream. Passthrough mode does not use up a
content port for that conference.
The MCU also has a Hybrid content mode. In Hybrid
mode, the incoming content stream is passed
through to participants who are able to support the
same codec as the original content stream (the
Passthrough content stream). The MCU also
encodes a stream, using the specified Outgoing
transcoded codec, for endpoints who cannot
decode the Passthrough content stream. Hybrid
mode uses up a video port.
Choose from:
■ Disabled: The MCU does not transmit
content.
■ Passthrough: The MCU does not transcode
the content before transmission. The data is
simply repackaged then sent to endpoints
that support the original codec.
■ Hybrid: The MCU sends a passthrough stream
to eligible endpoints, and a transcoded
stream to other endpoints that advertise
support for the Outgoing transcoded codec.
■ Transcoded: The MCU decodes the incoming
stream and re-encodes it using the Outgoing
transcoded codec, before sending it to all
endpoints that support the Outgoing
transcoded codec.
Sending of passthrough content to or from
endpoints over encrypted connections is
not supported, with the exception of
encrypted H.323 to encrypted H.323.
Endpoints that can only support
resolutions below the minimum threshold
will also only receive transcoded in hybrid,
and no content in passthrough mode.
Content streaming is not supported in
passthrough mode but is in hybrid mode.
Content previews are not supported in
passthrough mode but are supported for
hybrid content. In passthrough mode a
black panel is displayed.
A default content mode can be set in the
conference template.
Note that because ConferenceMe uses a
non-standards compliant protocol to send
media, ConferenceMe clients cannot send
or receive passthrough content.
Outgoing
transcoded
codec
The codec used to transcode the transcoded stream
in transcoded and hybrid content. If hybrid mode is
selected and a codec different to the incoming
stream is selected, two codecs will be sent: the
original codec in the passthrough content stream
and the transcoded codec in the transcoded content
stream.
Choose from:
■ Automatic
■ H.263+
■ H.264
If Automatic is selected, the MCU will
determine the best codec to use that will
maximize the number of participants that
can receive content.
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