7-5
Cisco IP Phone Administration Guide for Cisco CallManager 3.2, Cisco IP Phones 7960/7940/7910
78-10453-04
Chapter 7 Troubleshooting the Cisco IP Phone
Obtaining Status, Model, and Version Information
DHCP timeout
DHCP server did not respond.
•
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.
DNS timeout
DNS server did not respond.
•
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.
DNS unknown host
DNS could not resolve the
name of the TFTP server or
Cisco CallManager.
•
Verify the host names of the TFTP server
or Cisco CallManager are configured
properly in DNS.
•
Consider using IP addresses rather than
host names.
Duplicate IP
Another device is using the IP
address assigned to the phone.
•
If the phone has a static IP address, verify
that you have not assigned a duplicate IP
address. Refer to the
“Assigning an IP
Address” section on page 5-14
section for
details
•
If you are using DHCP, check the DHCP
server configuration.
Table 7-1
Status Messages (continued)
Message
Explanation
Possible Explanation and Action