testing 3cx SIP Server fails

[Mark Jones]

I am passing everything on the firewall checker except two things, the 3cx test server, and detecting SIP ALG.

can someone help

 

[eddv123]

And clicking "how to resolve" brings you through to this page I believe:
https://www.3cx.com/docs/firewall-checker/

Its not very clear I agree, I get the same from my test system and I know it is definitely firewall related (because ive not configured the firewall).

Look at disabling SIP ALG in your router/firewall and also check you have a one to one NAT mapping setup for 3CX's public to private IP addresses (some firewalls call it one to one NAT mapping).

 

[Mark Jones]

yes thanks I will check!

 

[leejor]

What make/model router are you using? Others may have some setting suggestions.

 

[Mark Jones]

Sonically NSA 2400

 

[cobaltit]

https://www.3cx.com/docs/sonicwall-firewall-configuration/

 

[Mark Jones]

Thanks