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IAP-335 Wifi Calling Issue

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  • 1.  IAP-335 Wifi Calling Issue

    Posted Dec 02, 2022 12:39 PM
    Single IAP-335 running 8.10.0.5

    New install with everything working fine except for Wifi Calling. 

    Client device is a iPhone Xs.

    Call establishes fine and voice quality on the client device is clear. However, the 3rd party reports very poor voice quality and breaking up. It's consistent with all callers.

    If anyone can point me in the right direction with troubleshooting that would be great!


  • 2.  RE: IAP-335 Wifi Calling Issue

    EMPLOYEE
    Posted Dec 02, 2022 06:41 PM
    generally WiFi calling creates a IPSEC over UDP to the service provider.
    So in your firewall you need to allow udp/4500 traffic

    WiFi calling is enabled on Instant APs, all you need to do is if you are using user-role access policies, then you need to allow udp/4500

    Here is the reference on Instant AP side of things
    https://www.arubanetworks.com/techdocs/Instant_810_WebHelp/Content/instant-ug/voice-and-video/wifi-calling.htm

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  • 3.  RE: IAP-335 Wifi Calling Issue

    Posted Dec 02, 2022 09:21 PM
    @ariyap

    The reference link seems to be incomplete for Instant OS 8.10

    The command structure cannot be applied as per the document.

    I believe that the correct syntax is below:

    wlan access-rule WIFICALLING
    rule any any match tcp 4500 4500 permit


    Please let me know your thoughts.


  • 4.  RE: IAP-335 Wifi Calling Issue

    EMPLOYEE
    Posted Dec 02, 2022 10:12 PM
    You are right, it should be "rule any any match 17 4500 4500 permit" which will be using UDP and not TCP

    Again if you are just allowing everything under your user-role then you don't need to do anything.
    But in case you have access policies then this is how you do it from Web UI


    This translates into the CLI command



    ------------------------------
    If my post was useful accept solution and/or give kudos.
    Any opinions expressed here are solely my own and not necessarily that of HPE or Aruba.
    ------------------------------