Resolving Lip Sync Problem - RADVision Scopia XT5000 Administrator's Manual

Resolving Lip Sync Problem

Problem
One of the optional video devices, an optional camera or a video converter, causes the video delay.
Solution
Administrator Guide for Scopia XT5000 Endpoint with Embedded
Server for IP Office Version 3.2
There is a lack of synchronization between audio and video.
Configure lip sync settings.
If configuring from the endpoint, you must first enable advanced configuration, as described
in Maintaining the XT Endpoint Locally from the Endpoint
1. Access the video quality settings by doing one of the following:
• From the XT Endpoint web interface, select Administrator Settings > Calls >
Video Quality > General.
• From the endpoint's main menu, select Configure > Advanced > Calls > Video
Quality.
Figure 86: Configuring the lip sync settings via endpoint interface
2. Set the fields as described in
Table 42: Configuring video quality settings
Field Name
Error resilience
Flow Control
Error strategies
on page 35.
Table 42: Configuring video quality settings
Description
Set to Yes to minimize error in case of packet loss
(for example, due to network congestion).
If set to Yes, a Flow Control (bandwidth reduction)
request is sent to the remote terminal in case of
packet loss.
If set to Yes, you may set the number of allowed line
errors before video is frozen.
Troubleshooting the Scopia XT Endpoint for IP Office | 141
on page 141