3.1.5 Message Processing Events and Sequencing Rules
The state transition diagram in the following figure summarizes the message sequencing rules for the Remote Desktop Protocol: Audio Input Redirection Virtual Channel Extension. Further details on sending and processing the messages are included in sections 3.2.5 and 3.3.5. Malformed packets that do not meet the specifications outlined in section 2.2, unrecognized packets, and out-of-sequence packets MUST be ignored by the server and the client. There are no time-outs for receiving a reply for any request.

Figure 4: State transition diagram