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Cisco 8811 Administration Guide

Cisco 8811
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Possible explanation and actionDescriptionMessage
Network is bus: The errors should resolve
themselves when the network load reduces.
No network connectivity between the TFTP
server and the phone: Verify the network
connections.
TFTP server is down: Check configuration of
TFTP server.
TFTP server did not respond.TFTP timeout
Authentication typically times out if 802.1X
is not configured on the switch.
Supplicant attempted 802.1X transaction but
timed out to due the absence of an
authenticator.
Timed Out
Phone has CTL and ITL files installed and it
failed to update the new CTL and ITL files.
Possible reasons for failure:
Network failure occurred.
TFTP server was down.
The new security token that was used to
sign CTL file and the TFTP certificate
that was used to sign ITL file are
introduced, but are not available in the
current CTL and ITL files in the phone.
Internal phone failure occurred.
Possible solutions:
Check network connectivity.
Check whether the TFTP server is active
and functioning normally.
If the Transactional Vsam Services
(TVS) server is supported on Cisco
Unified Communications Manager,
check whether the TVS server is active
and functioning normally.
Verify whether the security token and
the TFTP server are valid.
Manually delete the CTL and ITL files if all
the preceding solutions fail; reset the phone.
Update of the CTL and ITL files failed.Trust List update failed
None. This message is informational only.The CTL file, the ITL file, or both files are
updated.
Trust List updated
Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager
207
Cisco IP Phone Status

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Cisco 8811 Specifications

General IconGeneral
Ethernet Ports2 x 10/100/1000
Lines Supported5
SpeakerphoneYes
Headset PortYes
USB PortNo
BluetoothNo
Wi-FiNo
Resolution800 x 480 pixels
PoEYes, IEEE 802.3af Class 2
Audio Codec SupportG.711, G.722, G.729, iLBC
ProtocolsSIP
Display5-inch, 800 x 480 pixels
Headset JackRJ9
Weight1.1 kg

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