Calls HANGING

[MPH2020]

My firewall device is Sonic wall NSA 4600.

If I enable App control in my firewall, My 3CX phone system gets a problem .

All the phones will be having problems like the call is hanging or freezing. If you disable the App control from the firewall then the phones start to work fine.

Could anyone assist on this issue.

 

[craigreilly]

Did you follow this document? I know the 4600 specifically is not listed - but should be similar to the others.

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

 

[MPH2020]

• testing 3CX SIP Server... failed (How to resolve?)
  • stopping service... done
  • detecting SIP ALG... not detected
  • testing port 5060... Mapping does not match 5060. Mapping is 35454. (How to resolve?)
  • starting service... done
• testing 3CX Tunneling Proxy... failed (How to resolve?)
  • stopping service... done
  • testing port 5090... Mapping does not match 5090. Mapping is 34731. (How to resolve?)
  • starting service... done

 

[eddv123]

Well dont mean to point out the obvious but your port forwarding is failing on port 5060/5090 this means that for 5060 you could get issues like you are seeing, and 5090 Apps and SBC's wont connect (3CX tunnel).

This guide probably best describes what needs doing: https://www.3cx.com/docs/manual/firewall-router-configuration/

 

[JohnS_3CX]

If the firewall checker is failing, that should be your first thing to address.

I think what you have enabled is a type of application layer filtering that will interfere.