Manager; C H A P T E R 9 Troubleshooting And Maintenance; Identifying Error Messages; Checking Network Connectivity - Cisco 7942G Administration Manual

Chapter 9 Troubleshooting and Maintenance
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In addition, problems with security may prevent the phone from starting up properly. See the
"Troubleshooting Cisco Unified IP Phone Security" section on page 9-8

Identifying Error Messages

As the phone cycles through the startup process, you can access status messages that might provide you
with information about the cause of a problem. See the
for instructions about accessing status messages and for a list of potential errors, their explanations, and
their solutions.

Checking Network Connectivity

If the network is down between the phone and the TFTP server or Cisco Unified Communications
Manager, the phone cannot start up properly. Ensure that the network is currently running.

Verifying TFTP Server Settings

You can determine the IP address of the TFTP server used by the phone by pressing the Settings button
on the phone, choosing Network Configuration, and scrolling to the TFTP Server 1 option.
If you have assigned a static IP address to the phone, you must manually enter a setting for the TFTP
Server 1 option. See the
If you are using DHCP, the phone obtains the address for the TFTP server from the DHCP server. Check
the IP address configured in Option 150.
You can also enable the phone to use an alternate TFTP server. Such a setting is particularly useful if the
phone was recently moved from a from one location to another. See the
section on page 4-5

Verifying IP Addressing and Routing

You should verify the IP addressing and routing settings on the phone. If you are using DHCP, the DHCP
server should provide these values. If you have assigned a static IP address to the phone, you must enter
these values manually.
On the Cisco Unified IP Phone, press the Settings button, choose Network Configuration, and look at
the following options:
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Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1(3)
OL-17679-01
Verifying DNS Settings, page 9-4
Verifying Cisco Unified Communications Manager Settings, page 9-4
Cisco CallManager and TFTP Services Are Not Running, page 9-4
Creating a New Configuration File, page 9-5
Checking Network Connectivity, page 9-3
"Network Configuration Menu" section on page
for instructions.
DHCP Server—If you have assigned a static IP address to the phone, you do not need to enter a value
for the DHCP Server option. However, if you are using a DHCP server, this option must have a value.
If it does not, check your IP routing and VLAN configuration. Refer to the Troubleshooting Switch
Port and Interface Problems document, available at this URL:
http://www.cisco.com/warp/customer/473/53.shtml
Resolving Startup Problems
for more information.
"Status Messages Screen" section on page 7-3
4-5.
"Network Configuration Menu"
9-3