Polycom RMX 1500 Administrator's Manual page 391

To view the participant's properties during a conference:
1
In the Participants list, right click the desired participant and select
Participant Properties.
The Participant Properties - Media Sources dialog box is displayed.
Table 11-11 ISDN/PSTN Participant Properties - Media Sources
Field
Mute/Suspend
Chapter 11-Conference and Participant Monitoring
Description
Indicates if the endpoint's audio and/or video
channels from the endpoint have been muted/
suspended.
11-33