FortiVoice Strange problem

[FortiHelp]

Dears ,

I have a strange problem that FortiFones shows randomly the error message "Cannot make a call; the network is unreachable."

The customer network is very small and includes two Fortinet switches connected over Fortilink with a firewall.

The fortivoice is FVE-200F8 with version 6.4.8 after downgrading it from the latest version because it has a lot of bugs.

FortiFone, FON-380, and FON-570 with the latest firmware as well

The number of FortiFone is 30.

Is it a Fortivoice or FortiLink problem? What is the solution?

[Anthony_E]

Hello FortiHelp,

Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible.

Thanks,

[alya]

Hi FortiHelp,

- May I know is the issue happens to all of the extension?

- Is the issue happens to  FON-380, and FON-570?

- Can you help to verify what is the firmware version of the FortiFone?

Best Regards,

Alya