D-Link DVC-1000 - Manual (Page 48)

48
Troubleshooting
1. Cannot make a call using a phone number.
Check that you did not misdial the number.
Remember to dial a country code and area code for all calls when using
a telephone handset to make video calls.
The VideoPhone is not connected to the Internet.
The VideoPhone is not registered with the Directory Service.
It may take the VideoPhone up to 10 minutes to register. Verify all
network settings, including DNS.
The other party is not registered with the Directory Service.
If you are calling someone who has an videoconference
endpoint besides a DVC-1000 VideoPhone, you will have to make
direct IP calls to them. If the other party has a DVC-1000 VideoPhone
and you cannot connect to them via the Directory Service, they are
probably not registered.
2. Cannot make direct IP calls.
VideoPhone is not connected to the Internet. See the Internet
Connection section in this Troubleshooting Guide.
The person you are trying to call is unreachable. Ensure the IP
address of the person you are trying to call is correct.
Telephone is off the hook. Hang up the phone.
3. Telephone or television produces an off-hook signal.
4. Telephone or television produces a fast busy signal.
Person you are trying to call is not registered with the directory
service. Call the person using direct IP or wait until the person is
registered with the directory service.
Person you are trying to call is in a call or has rejected your call.
Try your call at a later time.