As MTSI sessions are based on IMS, they use the Session Initiation Protocol (SIP) and SDP for the basic call set-up and control mechanism, whereas they use RTP for media transport, as shown in Figure 2.
As MTSI sessions are based on IMS, they use the Session Initiation Protocol (SIP) and SDP for the basic call set-up andcontrol mechanism, whereas they use RTP for media transport, as shown in Figure 2.