Captions - Huawei 9000 VCT V100R011 Administrator's Manual

HUAWEI 9000 HD Video Terminal
Administrator Guide
About This Chapter
During a conference, you can create a caption, and then overlay the caption on the video sent
by the local site. The caption can be overlaid on the top, in the middle, or at the bottom of the
video.
The terminal supports T.140 and non-T.140 captions.
between these two types of captions.
Table 8-1 Differences between T.140 and non-T.140 captions
Non-T.140 Caption
A non-T.140 caption will be
superimposed on the local video.
SIP and H.323 terminals can send and
receive captions.
No restriction is imposed on the
terminals that send or receive non-T.

140 captions.

Non-T.140 captions can be sent only
from terminals in a conference, and
cannot be sent from the
ResourceManager that is the
videoconferencing management
software.
Issue 09 (2012-09-03) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
8
Table 8-1 describes the differences
T.140 Caption
A T.140 caption will be sent to remote sites and
displayed on the remote displays without being
superimposed on the local video.
Only H.323 terminals can send and receive captions.
If a T.140 caption is shared, both the sending and
receiving parties in a conference must support T.140
captions. Otherwise, a terminal that does not support
T.140 captions cannot receive the shared T.140
caption.
If both the sending and receiving parties in a
conference support T.140 captions, a T.140 caption
can be sent using any of the following methods:
l Sending the caption from the chair site
l Sending the caption from the terminal whose
built-in MCU is being used
l Sending the caption from the ResourceManager
NOTE
Captions can be sent from either party in a point-to-point
call.
8 Captions
Captions
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