KX-VC500CX, KX-VCA001X - Panasonic PBX Service Manual (repair manual). Page 15

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• Your hub or router may have different LAN mode settings than those of 

→ Check the settings of the hub/router and KX-VC500, and make sure that

they match

• Packet loss is occurring.

→ Check the transmission quality (network throughput, delay, packet loss 

rate etc.) of each party in a video conference call.

• The maximum transmission bandwidth is too high.

→ Confirm that the maximum bandwidth when making a video conference 

call is set to less than the maximum bandwidth for the network being 
used.

• There may be a problem with your communication lines.

→ If the compatible set produces a distorted image, please check the net-

work connections

• The image is still distorted even after turning the power OFF and ON 

1) Is bandwidth maintained above xxMhz?
→ Replace the unit if checks are successfully completed.

• The maximum bandwidth during a video conference call adjusts to that 

→ If there is a problem with the communication line, check the bandwidth of 

the communication line being used by the customer and the maximum 
bandwidth when making a video conference call. Then, set the caller’s 
maximum bandwidth ensuring that it does not exceed the communication 
line’s bandwidth.

→ If Internet activity such as Web browsing or e-mail is affecting communi-

cation, adjust the caller’s maximum bandwidth.

• The computer’s display resolution or refresh rate is incompatible with 

→ Set your computer’s resolution and refresh rate to a setting compatible 

with the KX-VC500.

• Video camera image is not displayed even when the compatible set 

→ Replace the unit.

• Video camera image is not displayed, even when the compatible set PC 

→ Replace the unit.