Cisco 7975G - Unified IP Phone VoIP Risoluzione dei problemi e manutenzione - Pagina 3

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Troubleshooting and Maintenance

Solution

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

messages and for a list of potential errors, their explanations, and their solutions.

Phone Cannot Connect to TFTP Server or to Cisco Unified Communications Manager

Problem

If the network is down between the phone and either the TFTP server or Cisco Unified Communications

Manager, the phone cannot start up properly.

Solution

Ensure that the network is currently running.

TFTP Server Settings

Problem

The TFTP server settings may not be correct.

Solution

Check the TFTP settings. See

IP Addressing and Routing

Problem

The IP addressing and routing fields may not be correctly configured.

Solution

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. See

DNS Settings

Problem

The DNS settings may be incorrect.

Solution

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. See

Phone Cannot Connect to TFTP Server or to Cisco Unified Communications Manager

Status Messages Screen

Check TFTP Settings, on page

Check DHCP settings, on page

for instructions about accessing status

13.

Verify DNS Settings, on page

Troubleshooting and Maintenance

14.