Troubleshooting - Fortinet FortiFone FON 80 Series User Manual

Troubleshooting

The following table includes corrective actions to help you solve common problems with FON-x80 series IP phones.
Symptoms
Display is blank
Phone not obtaining an IP address
Phone will not register
No audio during a call
FortiFone FON-x80 Series 3.0.3 User Guide
Fortinet Technologies Inc.
Corrective actions
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
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power adapter.
2. If you are using Power over Ethernet (PoE):
Ensure your Ethernet cable is plugged into the INTERNET
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port on the back of your phone.
Ensure the POE switch is properly configured. If it still
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doesn't 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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