Cisco 8831NR Administration Manual page 143

Troubleshooting and Maintenance
Create New Phone Configuration File
Note 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.
To create a new configuration file, follow these steps:
Procedure
Step 1 In Cisco Unified Communications Manager Administration, choose Device > Phone. Enter search criteria to
locate the conference phone experiencing problems, and then click the device name.
Step 2 In the Phone Configuration window, click Delete to remove the conference phone from Cisco Unified
Communications Manager.
Step 3 Add the conference phone to Cisco Unified Communications Manager.
Step 4 Power cycle the conference phone.
Related Topics
Verify DNS Settings
To verify DNS settings, follow these steps:
Procedure
Step 1 Select Apps > Admin Settings > Network Setup > IPv4 Configuration > DNS Server 1.
Step 2
Verify that there is a CNAME entry in the DNS server for the TFTP server and one for Cisco Unified
Communications Manager.
Step 3
Ensure that DNS is configured to do reverse look-ups.
Check DHCP Settings
Note
DHCP can be enabled and disabled manually.
Cisco Unified Communications Manager IP Phone Addition
Cisco Unified IP Conference Phone 8831 and 8831NR Administration Guide
Create New Phone Configuration File
Methods, on page 39
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