Polycom (RMX) 1500 User Manual

RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator’s Guide 

Polycom®, Inc. 

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3 Click the Apply button to confirm and keep the dialog box open, or click OK.

Lost Packet Recovery (LPR) and Dynamic Bandwidth Allocation (DBA) help minimize media quality 
degradation that can result from packet loss in the network. Packet loss Compensation is available in AVC 
CP Conferencing Mode only and is not supported in SVC Conferencing Mode or CP and SVC Conferencing 
Mode. 

Packet Loss refers to the failure of data packets, transmitted over an IP network, to arrive at their 
destination. Packet Loss is described as a percentage of the total packets transmitted.

Network congestion within a LAN or WAN, faulty or incorrectly configured network equipment or faulty 
cabling are among the many causes of Packet Loss.

Packet Loss affects the quality of:

● Video – frozen images, decreased frame rate, flickering, tiling, distortion, smearing, loss of lip sync
● Audio – drop-outs, chirping, audio distortion

Add

Select a participant and click this button to Add a the participant to the list of 
participants to be Auto Scanned.
The participants name is removed from the All Participants pane.

Delete

Select a participant and click this button to Delete the participant from the list 
of participants to be Auto Scanned.
The participants name is moved back to the All Participants pane.

Add All

Add all participants to the list of participants to be Auto Scanned.
All participants’ names are removed from the All Participants pane.

Delete All

Delete all participant from the list of participants to be Auto Scanned.
All participants’ names are moved back to the All Participants pane.

Up

Select a participant and click this button to move the participant Up in the 
Scanning Order.

Down

Select a participant and click this button to move the participant Down in the 
Scanning Order.