Procedure
Step 1
Navigate to Apps > Admin Settings > Network Setup > IPv4 Configuration > DHCP and choose the Reset
All option to reset conference phone settings to their default values.
Step 2
Modify DHCP and IP settings:
a) Disable DHCP.
b) Assign static IP values to the conference phone. Use the same default router setting used for other
functioning conference phones.
c) Assign TFTP server. Use the same TFTP server used for other functioning conference phones.
Step 3
On the Cisco Unified Communications Manager server, verify that the local host files have the correct Cisco
Unified Communications Manager server name mapped to the correct IP address.
Step 4
From Cisco Unified Communications Manager Administration, choose System > Server to locate the server,
and then click the server name. Verify that the server is referred to by its IP address and not by its DNS name.
Step 5
From Cisco Unified Communications Manager Administration, choose Device > Phone to locate the conference
phone, and then click the conference phone name. Verify that you have assigned the correct MAC address to
this conference phone.
Step 6
Power cycle the conference phone.
Related Topics
Cisco Unified IP Conference Phone 8831 reset or restore, on page 137
Network Setup menu, on page 62
Cisco Unified IP Phone MAC address determination, on page 44
Create new phone configuration file
When you remove a conference phone from the Cisco Unified Communications Manager database, its
configuration file is deleted from the Cisco Unified Communications Manager TFTP server. The conference
phone directory number remains in the Cisco Unified Communications Manager. It becomes an “unassigned
DN” and can be used by another device. If unassigned DNs are not used by other devices, delete them
from Cisco Unified Communications Manager. You can use the Route Plan Report to view and delete
unassigned reference numbers. For more information, see Cisco Unified Communications Manager
Administration Guide.
Note
To create a new configuration file, follow these steps:
Cisco Unified IP Conference Phone 8831 Administration Guide for Cisco Unified Communications Manager 9.0
135
Troubleshooting and maintenance
Troubleshooting procedures
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