Troubleshooting - Fortinet FON-80 Series User Manual

Troubleshooting

The following table includes corrective actions to help you solve common problems with FON-x80 series IP phones.
Symptom
Display is blank
Phone is not obtaining an IP address
Phone will not register
No audio during a call
FortiFone FON-x80 Series 3.0.9 User Guide
Fortinet Technologies Inc.
Corrective action
Confirm the phone's power source.
1. If you are using the power adapter:
Ensure it is plugged in. If it still doesn't work, replace the power
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adapter.
2. If you are using Power over Ethernet (PoE):
Ensure your Ethernet cable is plugged into the INTERNET port on
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the back of your phone.
Ensure the POE switch is properly configured. If it still doesn't
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work, replace the Ethernet cable.
The DHCP server is not responding.
1. Ensure your DHCP server is online. This is typically your router.
2. Reboot the router or DHCP server.
3. If you are still experiencing issues, the phone may require advanced
network configuration. Contact your administrator.
Your phone is not registered.
1. Run the Diagnostic Report under Menu > Tool to see where an issue
may be occurring.
2. On the Extension page of the FortiVoice interface, ensure the MAC
address is correctly entered and the Phone Type is FON-480. Save
your configuration and reboot the phone.
3. If phone is configured as an external extension, ensure the
Provisioning server is correct under Menu > Setting > Provisioning.
4. If your phone is configured as an external extension, check the network
connection and firewall settings at the phone system location
1. Check the handset/headset connections.
2. Make sure the phone is properly registered with the phone system.
3. If your phone is configured as an external extension, check the network
connection and firewall settings at the phone system location.
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