D-Link DVC-1100 Manual page 56

Troubleshooting (continued)
5. Picking up the phone displays a window with speed dial list or
brings up a message about no entries in the speed dial list.
VideoPhone is not registered with the Directory Service.
Sometimes it takes the VideoPhone up to ten minutes to register.
Verify all network settings, including DNS.
6. Telephone doesn't ring with an incoming call.
VideoPhone is set for Auto-Answer. If the VideoPhone is set up for
Auto-Answer then the phone will not ring with an incoming call. Fix by
turning off Auto-Answer via the Settings>General menu.
Telephone is not properly plugged in. Ensure that the phone is
properly plugged into the VideoPhone. If the telephone is not
self-powered, ensure that it is properly plugged into a power supply.
Consult your telephone user manual for reference.
Telephone ringer is off. Make sure the ringer on the phone is turned
on. Consult your telephone user manual for reference.
7. VideoPhone freezes-up while answering a call.
VideoPhone is not functioning properly behind a firewall.
See #9 in the next section, "No video in a call" solution.
8. Poor video in a call.
Camera out of focus. The far site should focus their camera by twisting
the knob on the VideoPhone until the image is in focus.
Incorrect Network Speeds. See # 23 Incorrect Network Speeds in
this Troubleshooting Guide.
Excessive motion in the picture you are receiving. A background
with less motion provides a better, smoother video picture.
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