Solved VOIP traffic from this computer or network cannot work in Stun Mode.

[Syed Muhammad Yasir]

I am getting this error while running 'Remote Firewall/Nat test utility'. Can anyone has idea ?

VOIP traffic from this computer or network cannot work in Stun Mode.
Possible Causes:
1. Check your Firewall Configuration to confirm that your firewall is not blocking packets
2. Check you Internet Connection to ensure that you can reach the stun server. Try and ping the stun server host.
3. Confirm that you have performed the 3CX Phone System Firewall checker and that the test passes completely.
To do this access the 3CX Management Console and go to General Settings > Firewall Checker > Run Firewall Checker.

 

[GiannosC_3CX]

Hi Syed,

If I understand correctly, you run the 'Remote Firewall/Nat test utility' from that link https://www.3cx.com/blog/voip-howto/3cx-firewall-checker-client/ and the above are results of the remote firewall checker, is that correct?
As far i can see you need to open the appropriate ports. Please visit the following link, https://www.3cx.com/docs/3cx-phone-system-v14-ports/

 

[Syed Muhammad Yasir]

That worked, Thanks

 

[GiannosC_3CX]

Hi Syed,

Glad to hear the issue is resolved