You could use any of these two ways to confirm AES67 audio is going out of your AoIP Iris panel.
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To learn how to capture the traffic and play it in Audacity, please refer to this solution:
IMPORTANT: Ideally, you would want to capture data in the network switch, but IF not able to make changes to the switch to capture RTP traffic, as described on the solution below, for testing purposes, an unmanaged gig switch could be used. You could plug the IPA card, the Iris panel and wireshark into the unmanaged switch to capture RTP traffic.
How to listen to AES67 / ST2110 audio RTP Stream using Wireshark and Audacity
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