Cisco 7960 Administration Manual page 117

Chapter 7 Troubleshooting the Cisco IP Phone
Table 7-1 Status Messages (continued)
Message
DHCP timeout
DNS timeout
DNS unknown host
Duplicate IP
Cisco IP Phone Administration Guide for Cisco CallManager 3.2, Cisco IP Phones 7960/7940/7910
78-10453-04
Explanation
DHCP server did not respond.
DNS server did not respond.
DNS could not resolve the
name of the TFTP server or
Cisco CallManager.
Another device is using the IP
address assigned to the phone.
Obtaining Status, Model, and Version Information
Possible Explanation and Action
Network is busy—the errors should
•
resolve themselves when the network
load reduces.
No network connectivity between the
•
DHCP server and the phone—verify the
network connections.
DHCP server is down—check
•
configuration of DHCP server.
Errors persist—consider assigning a
•
static IP address. Refer to the
"Configuring IP Settings" section on
page 5-14 for details on assigning a static
IP address.
Network is busy—the errors should
•
resolve themselves when the network
load reduces.
No network connectivity between the
•
DNS server and the phone—verify the
network connections.
DNS server is down—check
•
configuration of DNS server.
Verify the host names of the TFTP server
•
or Cisco CallManager are configured
properly in DNS.
Consider using IP addresses rather than
•
host names.
If the phone has a static IP address, verify
•
that you have not assigned a duplicate IP
address. Refer to the
Address" section on page 5-14
details
If you are using DHCP, check the DHCP
•
server configuration.
"Assigning an IP
section for
7-5