Troubleshooting Guide - Fortinet FortiFone-450i User Manual

TROUBLESHOOTING GUIDE

Symptom
LCD Off
Handset off-hook, no dial tone
Button LEDs flash
alternating red/yellow
Phone is stuck displaying
"Obtaining IP Address"
No audio during a call
The phone has locked up or the
screen is blank but there is power.
7 8
Corrective Action
1. Ensure PoE cable or power adapter is properly connected.
2. Check/replace AC/DC adapter.
1. Ensure the RJ-45 cable is correctly connected.
2. Make sure that the SIP Server IP Address is correct.
Line not registered with the SIP server (FortiVoice phone system)
1. Check the SIP configuration parameters are correct.
2. Check network connections.
3. Check the phone system / SIP server is operational.
The DHCP server is not responding.
1. Check the DHCP server is functional.
2. If enabled, check VLAN settings.
To exit the DHCP searching mode, press the
complete the bootup. Manually assign an IP address or reboot the
phone to try having the DHCP server assign an IP address.
If the phone is outside the LAN where the phone system resides, then
ensure the proper ports are open on the firewall to ensure calls can make
it through.
A phone lock-up may be caused by a communications error during a
firmware upgrade. To correct this problem:
1. Disconnect power from the phone.
2. Press and hold the volume up and 2 button while re-applying power.
3. Release the buttons when the Message LED in the top corner turns off.
4. When the BootC screen appears, enter the digits 1, 2, 3, 4.
5. Follow the prompts to configure IP parameters for the phone.
6. At the Server Addr? prompt, enter the TFTP server address where the
phone can find the firmware files. If already correct, press the Next
softkey.
7. At the Do you want to apply default? prompt, select the Yes softkey to
use defaults or No softkey to use previously assigned parameters.
The phone will reboot, perform the update and return to normal
operation.
F O R T I F O N E - 4 5 0 i A N D F O R T I F O N E - 5 5 0 i T E L E P H O N E U S E R G U I D E
button 3 times to