Hi @IBN ,
When a call is placed in PARK mode, the caller is hearing the Microsoft Music instead of our Music On-Hold.
Actually it's an expected behavior. According to the documentation below, custom Music on Hold is not available when Call Park is used. Instead, the standard Music on Hold will be played:
Music on Hold
Given this, I just tried submitting the request via the dedicated feedback portal for Microsoft Teams. I'll leave the link below so that you or others who see our discussion here can vote or comment there as well. Hopefully this feature can be added in the future.
Allow custom music to be played on Parked calls
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