3.1.5.7 Receiving a UdpPacketPair Response

The client MUST first follow the steps as specified in section 3.1.5.2.

If the Firewall timer is still running, the client MUST wait for an RTP packet containing packet-pair data to be received. How to process RTP packets containing packet-pair data is specified in section 3.1.5.8.

Otherwise, the client MUST wait until a higher-layer triggered event occurs. The next higher-layer triggered event is a request to start streaming content, as specified in section 3.1.4.3.