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SIP Traffic Dropped to Commander.com.au

DomusRegis

I have multiple customers who have hosted PABX in the Commander Cloud.  I have repeated cases where the issue is perceived to be Sophos Firewall caused.  The phone company provider is common in all the cases.  Commander is common in all the cases.  The solutions is to put a Draytec router in.  I have collected thousands of packet without a drop on any device.  SIP helper is disabled.  QOS is on in some case, off in others. I have changed the UDP timeout to 150.  I have unbloud the IPSEC\SSL VPN from the traffic.  I have placed SIP traffic higher in the rules.  The phone system provider cannot provide support and have washed their hands of the issue and told the customer it is a Sophos.  I have the customers recording phone  number and logging the issue.  Raising cases but I ma not hopeful.



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[edited by: emmosophos at 1:37 AM (GMT -8) on 9 Nov 2021]
[locked by: rfcat_vk at 9:31 PM (GMT -8) on 26 Nov 2021]
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  • 0

    I now have complaint about Sophos Routes not talking with Commander.com from a third customer.  SIP traffic appears fine.  Phones are crackly and drop. To me this is an application issue.  I have logs.  Raising another ticket.

  • 0 in reply to DomusRegis

    Out of curiosity, what model XGs are you using and having issues with?
    ian

  • 0 in reply to rfcat_vk

    THe router, where customer is replacing the Sophos with Draytec is a XGS126 (SFOS 18.5.1 MR-1-Build326)

    The same customer has the indeical issue on another router.  So 2 X XGS126 (SFOS 18.5.1 MR-1-Build326)

    Another customer, a clothing company, had the issue, but that appeared to be a legacy config and link generated issue and I was able to remediate that one.  It was a XG135 (SFOS 18.5.1 MR-1-Build326)

    The medical clinc, whose config has not changed in months, is a XGS126 (SFOS 18.5.0 GA-Build289)

    Not all the same firmware, not all the same hardware.  I caant belive I have a phone company dictating network devices, it should be the other way around.  No matter what change I make, there is not change.

    To me this is an appllication resilance issue in the Commander Hosted PBX, not a Sophos issue.  I do see the one customer removing all the Sophos Gear with Draytec as there is not solution and everyone in convinvec it is a Sophos Problem.  Getting Sophos to take more notice or some other advice is also frustrating.  Thus I post the fact here and update the exisitng tickets.

  • 0 in reply to Sophos Admin66

    Thank you for those details. I would suspect the the xgs126 are not offloading the voip traffic correctly, but will require a XG support wizkid to sort out.

    ian

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