Polycom DOC2702A User Manual

Chapter 2-Conference Profiles

Polycom, Inc.

Message Overlay allows the operator or administrator to send text messages to a single, 
several or all participants during an ongoing conference. 
The text message is seen as part of the in the participant’s video layout on the endpoint 
screen or desktop display.

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Message Overlay messaging is supported in:
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MPM+ and MPMx Card Configuration Modes, with a few differences in 
implementation between the two modes

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Continuous Presence (CP)conferences

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in Same Layout mode 

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in encrypted conferences

It is not available for Video Switching (VSW) conferences.

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Messages Overlay can be enabled or disabled during the ongoing conference.

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Text  messages  Content can be changed on the fly during the ongoing conference.

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Message Overlay text messages are supported in Unicode or ASCII characters. 

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The number of characters for each language can vary due to the type of font used, for 
example, the available number of characters for Chinese is 32, while for English and 
Russian it is 48.
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In some languages, for example Russian, when large font size is selected, both 
rolling and static messages may be truncated if the message length exceeds the 

resolution width.

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Changes to the Message Overlay display characteristics (position, size, color and speed) 

are immediately visible to all participants. 

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Changes to the Message Overlay Content are immediately visible to all participants.

When there is a current Message Overlay:
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The current message is stopped immediately. 

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The Display Repetition count is reset to 1.

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The new message Content is displayed <Display Repetition> times or until it is 
stopped and replaced by another Content change.

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If  a  Repeating Message is modified before it has completed all its repetitions, it is changed 

immediately without completing all of its repetitions. The modified Repeating Message is 
displayed starting with repetition one.

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Message Overlay messaging is not supported in Lecture mode.

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If during the ongoing conference the Show Number of Participants DTMF option 

(default DTMF *88) is used, when the displayed number of participants is removed, the 
message overlay text is also removed.