The Clients are laptops with Cisco Jabber behind a VPN terminated at the controller. The clients seem to be ok to the AP, the issue persists even if you are wired directly to the controller and seems to be more in relation to the VPN session from what I can tell. The Cisco Jabber SIP call works just fine when calling from Client 1 “inside the VPN” and Client 2 “outside the VPN” both being on the same subnet. The issue only arising when both clients pass traffic through the VPN to each other.
When watching call setup happen using Wireshark on both clients you can see that the calling station never gets RTCP packets (the flow marked as “FY”) and the RTP stream itself (also marked as “FY”) seem to disappear at the Controllers VPN interface. This is what got me investigating the Y as only the affected traffic is marked as such.
Also it should be noted that the one way voice issue is always bound to the call originator, regardless if client 1 calls client 2 or vice-versa. The receiver always has two way voice and its return RDP/RTCP traffic seems to show on the controller but never arrives at the other endpoint.
I’m currently at a dead end and don’t know what else to check for on the Aruba.
Thank you for your reply.