The H.248 Context model for a WebRTC call in Figure 6.2.10.6.2.1 is assumed. However, the example flow in this clause focuses on the WebRTC data channel part only. Thus, only H.248 Streams S1 (for de-aggregation of multiple data channels) and S2 (for MSRP traffic) are indicated subsequently.
Figure 6.2.22.3.1.1 shows the message sequence chart example for the WIC originated procedure to establish a WebRTC data channel with media plane optimization following the procedures in clause 5.20.3.2.