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MGC Manager User’s Guide - Volume I
4-121
Video Protocol This option defaults to the conference setting when
adding a new participant during an On Going
Conference.
Select the video compression standard:
• Auto - Use the conference’s Video Protocol
settings and enable the dynamic adjustment of
the Video Protocol. For more details, see
“Defining Advanced Media Settings” on page 4-
57.
• H.261 - The base video compression standard
that is supported by all endpoints/participants.
• H.263 - A video compression standard that
provides enhanced video quality. This standard
is not supported by all endpoints.
• H.264 - A video compression standard that
provides enhanced video quality especially in
line rates of up to 384 Kbps. This standard is not
supported yet by all endpoints.
• H.264* - A Polycom proprietary standard for
video compression that improves video qaulity at
a line rate lower than 384Kbps.
Note: When the Video Protocol is set to Auto in the
Conference Properties - Settings dialog box, this
overrides the participant’s Video Protocol settings,
because Auto enables the dynamic mode in which
the video settings are forced by the MCU. In such a
case, the system first tries to connect the participant
using the H.264 video protocol. Only if the endpoint
does not support H.264, the system tries to connect
the participant using H.263 or H.261. If the
conference video protocol is set to H.264 or H.263
and the endpoint does not support this protocol, the
participant is connected as Secondary (audio only).
Table 4-18: IP Participant Properties - Advanced (Continued)
Field/Option Description