3.3.5.2.1.6 Processing a Wave Confirm PDU
The structure and fields of the Wave Confirm PDU are specified in section 2.2.3.8.
Upon receiving a Wave Confirm PDU, the server knows that the client consumed the audio sample that has a cBlockNo value identical to cConfirmedBlockNo.
If the server sent the audio sample using UDP and does not receive a Wave Confirm PDU, then the server MUST continue normally.