Troubleshooting
749
noisy equipment.
Line issues can also cause this problem; disconnect the old line and redial the call to ensure
another line may provide better connection.
Why is there no sound when the other party picks up the call?
If the caller and receiver cannot hear anything - there is no sound at all when the other party
picks up the call, the possible reason could be: the phone cannot send the real-time transport
protocol (RTP) streams, in which audio data is transmitted, to the connected call.
Try to disable the 180 ring workaround feature. For more information, refer to
Why does the IP phone play the local ringback tone instead of media
when placing a long distance number without plus 0?
Ensure that the 180 ring workaround feature is disabled. For more information, refer to
Camera and Video Issues
Why is the video quality bad?
Ensure that the display device has suitable resolution.
Check whether the packet has been lost. For more information on packet loss, refer to
Getting Information from Talk Statistics
Ensure that camera settings are configured correctly, such as brightness and white balance.
Avoid high-intensity indoor light or direct sunlight on the camera.
Why can’t I preview local camera when the phone is idle?
If the camera is properly connected to the IP phone but there are no images on the screen when
you launch
Camera
application or swipe down from the top of the screen and then tap
Video
,
you may need to replace the camera.
Why is there some dazzle light on the images when previewing the local
camera?
If the camera lens is oily or soiled, there may be some dazzle light on the images. Please try to
clean it up.
Summary of Contents for CP969
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Page 22: ...Administrator s Guide for SIP T5 Series Smart Media Phones xxii ...
Page 30: ...Administrator s Guide for SIP T5 Series Smart Media Phones 8 ...
Page 474: ...Administrator s Guide for SIP T5 Series Smart Media Phones 452 ...
Page 781: ...Troubleshooting 759 The phone begins rebooting Any reboot of the phone may take a few minutes ...
Page 787: ...Troubleshooting 765 information on capturing packets refer to Capturing Packets on page 735 ...
Page 788: ...Administrator s Guide for SIP T5 Series Smart Media Phones 766 ...
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