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IAP Skype For Business Audio lag

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  • 1.  IAP Skype For Business Audio lag

    Posted Jul 06, 2017 08:36 AM

    Hi,

    We deployed a few IAP205 clusters for a client and are experiencing issues with skype for business. Specifically, some calls experience an audio lag, e.g. the call will sound like it has paused for a few seconds then the audio will catch up. It is random and cant be re produced on demand but it happens for quite a few calls.

     

    All settings for IAP form the Skype For Business VRD have been set, e.g. WMM, roles, etc.

     

    The S4B server is on premise.

     

    We have a TAC case open. The controller code was upgraded from 6.5.1.0-4.3.1.0 to 6.5.1.0-4.3.1.3, the issue remained, then downgraded to 6.4.4.8-4.2.4.8, issue still remains.

     

    Has anyone else encountered any similar issues?



  • 2.  RE: IAP Skype For Business Audio lag
    Best Answer

    Posted Jul 06, 2017 08:40 AM
    Are these Windows clients?
    Have you also set group policies for Client-Side voice/video prioritization?


  • 3.  RE: IAP Skype For Business Audio lag

    Posted Jul 06, 2017 08:57 AM

    Yep, Windows clients.

     

    Not sure about the group policy, will find out though.



  • 4.  RE: IAP Skype For Business Audio lag

    Posted Jul 06, 2017 09:02 AM

    Please see "creating QOS policy on a Windows Client" in the Skype for Business VRD here:  https://community.arubanetworks.com/t5/Validated-Reference-Design/Skype-for-Business-VRD/ta-p/286023

     

    It is essential for proper downstream (client to AP) Quality of Service..



  • 5.  RE: IAP Skype For Business Audio lag

    Posted Jul 27, 2017 09:35 PM

    This seemed to have fixed it, thanks!



  • 6.  RE: IAP Skype For Business Audio lag

    Posted Jul 27, 2017 09:45 PM
    Glad to hear it. Do you mind posting screenshots of your QOS group policies for others when you get a chance?