Section: 10.5.5.28 Voice domain preference and UE's usage setting
Content: The purpose of the Voice domain preference and UE's usage setting information element is to provide the network with the UE's usage setting and the voice domain preference for WB-S1 mode. The network uses the UE's usage setting and the voice domain preference for E-UTRAN (see 3GPP TS 24.167[ 3GPP IMS Management Object (MO); Stage 3 ]  [13B]) to select the RFSP index. The UE's usage setting bit indicates the value configured on the ME as defined in 3GPP TS 23.221[ Architectural requirements ]  [131]. The voice domain preference for E-UTRAN bit indicates the value configured on the ME of the Voice domain preference for E-UTRAN as defined in 3GPP TS 24.167[ 3GPP IMS Management Object (MO); Stage 3 ]  [134]. The Voice domain preference and UE's usage setting information element is coded as shown in figure 10.5.151A/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ]  and table 10.5.166A/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] . Figure 10.5.151A/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] : Voice domain preference and UE's usage setting information element Table 10.5.166A/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] : Voice domain preference and UE's usage setting information element