Section: 10.5.4.22a Reverse call setup direction
Content: This information element may be included in a MODIFY and MODIFY COMPLETE message to indicate that the direction of the data call to which the MODIFY message relates is opposite to the call setup direction. The reverse call setup direction information element is coded as shown in figure 10.5.110/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] . The reverse call setup direction is a type 2 information element Figure 10.5.110/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ]  Reverse call setup direction information element