This article relates to Cisco IP Video Phone E20.
Q. I experience poor image quality when using the TANDBERG E20 from home. Why?
A. There may be a few network related reasons contributing to this problem when using the TANDBERG E20:
Limited bandwidth - try decreasing the Maximum upstream bitrate under Call Settings in System Settings until you get a better quality image. This will ensure that the bandwidth requirements of the encoded bitstream are better matched to actual available network bandwidth.
Large amounts of your bandwidth are in use, leaving little for the TANDBERG E20 - the problem is solvable by setting up a QoS service at home. (Many routers have this option built in: check the manual for further instructions). The problem may also be solved by pausing other applications during video calls.
Packet loss / packet reordering - this problem may be solved through your Internet Service Provider.
To check if you currently have problems with packet loss on your TANDBERG E20 do the following:
Press the Home button to display the Main menu.
Press the right-most soft button.
The System Information menu will pop up. In this menu you can read out the current experienced packet loss.