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Cloud Voip Phones BLF's Not working

Mandy Smith

Hi,

I have a network that newly had 70 cloud hosted phones installed at a hotel.  The 10 Staff phones all have BLF enabled on them but they worked on some phone and not on others then finally they stopped altogether.  The phones are on the Gamma Horizon platform and are Poly phones

I've checked the MTU and it's set at 1500 as per the phone company's spec and I can't seen anything that  stands out ion the logs.  I've disabled SIP ALG and applied the below KB's

Sophos XG Firewall: VoIP calls may drop or encounter poor quality

Sophos XG Firewall v17: Understanding 'Invalid Traffic' log entries caused by the connection being timed out from conntrack

Can anybody suggest anything?



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  • 0 in reply to Mandy Smith

    Hi Mandy,

    I was asking about policies like these not firewall rules where e you apply policies.

    I have added services because one of my VoIP phones occasionally likes to use other services.

    I have included the web policy which was developed when I was using v17, but is no longer relevant for v18.

    Ian

    XG115W - v20.0.2 MR-2 - Home

    XG on VM 8 - v21 GA

    If a post solves your question please use the 'Verify Answer' button.



    added text about the web policy.
    [edited by: rfcat_vk at 10:47 PM (GMT -8) on 27 Dec 2020]
  • 0 in reply to rfcat_vk

    Thanks for the suggestion however this didn't work.  Do you know how to stop UDP fragmentation on the firewall?

  • 0 in reply to Mandy Smith

    Hi Mandy,

    I would suggest you ask the support guy, but in the meantime look at the WAN configuration regarding MTU etc.

    Ian

    XG115W - v20.0.2 MR-2 - Home

    XG on VM 8 - v21 GA

    If a post solves your question please use the 'Verify Answer' button.

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