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V14 Sporadic one way audio

Discussion in '3CX Phone System - General' started by RobertKroll, Oct 30, 2015.

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  1. RobertKroll

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    Hello,
    I have been using 3cx for many years and I seem to be having an issue I simply just can't solve. I have a deployment that I am using that seems to be experiencing one way audio several times during the day. I reset all services and the system is up and running again for a few hours until the next time. I haven't changed any settings in the system since upgrading to v14 so I am hoping somebody can assist. My system overview:

    SonicWALL NSA2600
    Windows server 2012 Hyper-V w/4 guest operating systems
    Windows server 2012 running 3cx v14
    Yealink T-28 telephones (x15)
    2 remote 3cx softphones
    2 remote telephones via VPN (SonicWALL TZ105)

    I haven't noticed anything in the event logs or the 3cx server logs (Unless I am missing something that somebody more educated than I may notice).

    If you can assist, I would be appreciative.

    Regards,
    Robert Kroll
     
  2. bardissi

    bardissi Member

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    Two things come to mind.
    1. Network / router / isp issues
    2. Vm Host resource issue.
     
  3. RobertKroll

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    Thank you for the reply, can you elaborate? I have checked, but cannot find issues.
     
  4. bardissi

    bardissi Member

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    First things first, are you running the sonicwall hot fix ?
     
  5. adrianc

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    Robert

    We have an NSA 2600 running with 3CX 12 without any issues of audio.
    It's running firmware SonicOS Enhanced 6.2.2.1-14n--HF156374-6n but the hotfix number is NOT for anything 3CX related.
     
  6. RobertKroll

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    Thank you for the input. Your input prompted me to check the firmware. The problem was indeed a firmware issue. What was happening is that the SonicWALL was remapping the ports which was a bug in the firmware. Performed the following:

    Disabled remapping on outgoing NAT policy.
    Turned off Consistent NAT.
    Turned off STUN on PBX.
    Restarted all services.

    So far, 48 hours, so good...

    Regards
     
  7. adrianc

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    Hi Robert

    Which version of firmware are you running now?

    Adrian
     
  8. bardissi

    bardissi Member

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    Happy to hear that the Sonicwall hotfix was the culprit!
     
  9. RobertKroll

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    Firmware Version: SonicOS Enhanced 6.2.2.1-14n--HF152075-2n
     
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