Fortinet FortiFone FON-575 - Troubleshooting

12
Troubleshooting
3
Symptom Corrective Action
Display is blank Confirm the phone’s power source.
1. If you are using Power over Ethernet (PoE):
• Ensure your Ethernet cable is plugged into the WAN port
on the back of your phone.
• Ensure the PoE switch is properly configured. If it still
doesn’t work, replace the Ethernet cable.
2. If you are using the power adapter:
• Ensure it is plugged in. If it still doesn’t work, replace the
power adapter.
Phone not
receiving a DHCP
IP Address
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. Please contact your
administrator or refer to the FON-575 User Guide.
No name and
Extension Number
is displayed
Your phone is not registered.
1. On the Extensions page of the FortiVoice interface, ensure
the MAC address is correctly entered and the Phone Type is
FON-575. Save your configuration and reboot the phone.
2. On the phone, ensure the Server is correct. To verify, see
“Foruse as an external extension”.
3. If your phone is configured as an external extension,
checkthe network connection and firewall settings at the
FortiVoice location.
No audio during
a call
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
FortiVoice location.