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Troubleshooting
Symptom
Display is blank
Phone not
receiving a DHCP
IP Address
No name and
Extension Number
is displayed
No audio during
a call
Troubleshooting
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 adapter.
2. 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.
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.
Your phone is not registered.
1. On the Extension page of the FortiVoice interface,
ensure the MAC address is correctly entered and the
Phone Type is FON-C71.
2. Save your configuration and reboot the phone.
Make sure the phone is properly registered with the
phone system.
4
FortiFone™ QuickStart Guide
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