Possible explanation and actionDescriptionMessage
None. This message is informational only.
Neither the CTL file nor the ITL file was
installed previously.
The CTL and ITL files are installed on the
phone.
CTL and ITL installed
None. This message is informational only.
The CTL file was not installed previously.
A certificate trust list (CTL) file is installed
in the phone.
CTL Installed
Problem with the CTL file on the TFTP
server.
The phone could not update the certificate
trust list (CTL) file.
CTL update failed
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.
DHCP server did not respond.DHCP timeout
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
the DNS server.
DNS server did not respond.DNS timeout
Verify that the host names of the TFTP server
or Cisco Unified Communications Manager
are configured properly in DNS.
Consider using IP addresses rather than host
names
DNS could not resolve the name of the TFTP
server or Cisco Unified Communications
Manager.
DNS unknown host
If the phone has a static IP address, verify that
you did not assigned a duplicate IP address.
If you are using DHCP, check the DHCP
server configuration.
Another device is using the IP address that
is assigned to the phone.
Duplicate IP
None. This message is informational only.Erasing CTL or ITL file.Erasing CTL and ITL files
Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager
204
Cisco IP Phone Status
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