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VoIP and SIP Not Working - Cloud FreePBX

NashBrydges

Sophos XG + VoIP = MASSIVE FAIL on the part of Sophos!

Setting this up should NOT be this complicated!

Hoping someone much more intelligent than I, has been able to get their VoIP working.

  • FreePBX server in the cloud (please do not confuse this for a cloud VoIP provider - I have an actual FreePBX instance running as a cloud VM)
  • voip.ms as a SIP provider
  • 6 VoIP devices in the house ranging from softphones to actual physical SIP phones

I need for any of my phone devices to be able to place an outbound call. I need for anyone from anywhere in North America to be able to dial my number and based on their IVR selection, reach anyone in the family.

Does anyone on this forum have a scenario like this that IS working? Hell, even if you have a single device, I'm willing to try anything at this point. If you have a FreePBX or other type of PBX on your internal network, I'd like to know how you have it configured. I'm willing to move the server back in-house if needed.

As happy as I am with the firewall's speed and performance, not being able to get a working VoIP configuration is completely unacceptable. If I can't get this working, I'm simply going to have to go back to my Sophos UTM which was child's play at setting up.



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  • 0 in reply to NashBrydges

    Got to run to church but quick search maybe this will help,

    If the issue is random, I suspect it to be related with Anti DoS  configurations. Please navigate through System > System Services > DoS & Spoof Protection>  DoS Settings. Remove the DoS settings! If you still discover random glitches, SSH to XG and go to option 4. Run command: drop-packet-capture 'host x.x.x.x. Check if you find any drop packets for VoIP connections. 

     

     

    Sachin Gurung | Network Security Engineer

    #user

  • 0 in reply to B.R.O.

    I'm having issues with SIP too. The firewall rules are allowing everything and even checking the log, nothing is being blocked.

     

    In my case I'm using Cloud PBX from the German Telecom.
    Interstingly enough, when I connect my computer directly to the router instead of the firewall it works flawlessly. But behind the firewall, the application claims that SIP is being blocked in the network.

  • +1 in reply to Yannick Schinko

    Hello Yannick,

    Could you please try to unload these 2 protocals and try again? Go to console via option 4 and type the command > system system_module sip unload and also try with this as well system system_module h323 unload .

    If you are using DNAT rule to port forward to your internal VOIP server, I would recommend to confgure using Proxy ARP configuration which would require additional oublic address assigned to the VOIP server it-self.

    Related KBA: https://community.sophos.com/kb/en-us/123525

  • 0 in reply to Aditya Patel

    Aditya Patel said:
    system system_module sip unload

     

    That sloved my issue. Thanks!
    Is there anything I have to do to make it persistent, even after restarting the system?