Verifying Dns Settings; Verifying Cisco Unified Communications Manager Settings; Cisco Unified Communications Manager And Tftp Services Are Not Running - Cisco 7975G Administration Manual

Resolving Startup Problems
•
If you are using DHCP, check the IP addresses distributed by your DHCP server. Refer to Understanding
and Troubleshooting DHCP in Catalyst Switch or Enterprise Networks, available at this URL:
http://www.cisco.com/warp/customer/473/100.html#41

Verifying DNS Settings

If you are using DNS to refer to the TFTP server or to Cisco Unified Communications Manager, you
must ensure that you have specified a DNS server. Verify this setting by pressing the Settings button on
the phone, choosing Network Configuration, and scrolling to the DNS Server 1 option. You should
also verify that there is a CNAME entry in the DNS server for the TFTP server and for the
Cisco Unified Communications Manager system.
You must also ensure that DNS is configured to do reverse look-ups.

Verifying Cisco Unified Communications Manager Settings

On the Cisco Unified IP Phone, press the Settings button, choose Device Configuration, and look at
the CallManager Configuration options. The Cisco Unified IP Phone attempts to open a TCP
connection to all the Cisco Unified Communications Manager servers that are part of the assigned
Cisco Unified Communications Manager group. If none of these options contain IP addresses or show
Active or Standby, the phone is not properly registered with Cisco Unified Communications Manager.
See the
tips on resolving this problem.

Cisco Unified Communications Manager and TFTP Services Are Not Running

If the Cisco Unified Communications Manager or TFTP services are not running, phones may not be
able to start up properly. However, in such a situation, it is likely that you are experiencing a
system-wide failure and that other phones and devices are unable to start up properly.
If the Cisco Unified Communications Manager service is not running, all devices on the network that
rely on it to make phone calls will be affected. If the TFTP service is not running, many devices will not
be able to start up successfully.
To start a service, follow these steps:
Procedure
From Cisco Unified Communications Manager Administration, choose Serviceability from the
Step 1
Navigation drop-down list.
Step 2 Choose Tools > Control Center - Feature Services.
Choose the primary Cisco Unified Communications Manager server from the Server drop-down list.
Step 3
The page displays the service names for the server that you chose, the status of the services, and a service
control panel to stop or start a service.
Step 4 If a service has stopped, click its radio button and then click the Start button.
Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 6.0
9-4
IP Address, Subnet Mask, Default Router—If you have assigned a static IP address to the phone,
you must manually enter settings for these options. See the
on page 4-5 for instructions.
"Registering the Phone with Cisco Unified Communications Manager" section on page 9-5
Chapter 9 Troubleshooting and Maintenance
"Network Configuration Menu" section
for
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