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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone
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Table |
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Message | Description | Possible Explanation and Action |
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DNS timeout | DNS server did not respond. | • Network is |
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| resolve themselves when the network |
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| load reduces. |
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| • No network connectivity between the |
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| DNS server and the |
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| network connections. |
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| • DNS server is |
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| configuration of DNS server. |
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DNS unknown host | DNS could not resolve the | • Verify that the host names of the TFTP |
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| name of the TFTP server or | server or Cisco Unified CallManager are |
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| Cisco Unified CallManager. | configured properly in DNS. |
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| • Consider using IP addresses rather than |
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| host names. |
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Duplicate IP | Another device is using the IP | • If the phone has a static IP address, verify |
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| address assigned to the phone. | that you have not assigned a duplicate IP |
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| address. See the “Network Configuration |
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| Menu Options” section on page |
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| section for details. |
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| • If you are using DHCP, check the DHCP |
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| server configuration. |
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| Cisco Unified IP Phone 7940G/7960G Administration Guide for Cisco Unified CallManager 4.2(3) |
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