Verifying Ip Addressing And Routing; Verifying Dns Settings; Verifying Cisco Unified Communications Manager Settings; Cisco Callmanager And Tftp Services Are Not Running - Cisco 7975G Software Manual

Resolving Startup Problems

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:
•
•
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
CM 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 CallManager 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 other phones and devices are unable to start up properly.
If the Cisco CallManager 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:
Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 7.0 (SCCP and SIP)
9-4
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 Troubleshooting
Switch Port Problems, available at this URL:
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 9-6
Chapter 9 Troubleshooting and Maintenance
http://www.cisco.com/warp/customer/473/53.shtml
"Network Configuration Menu" section
for
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