Section: 9.3.9.1 Facility (network to mobile station direction)
Content: This message is sent by the network to the mobile station to request or acknowledge a supplementary service. The supplementary service to be invoked and its associated parameters are specified in the facility information element. See table 9.62a/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] . Message type: FACILITY Significance: local (NOTE 1) Direction: network to mobile station Table 9.62a/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] : FACILITY message content (network to mobile station direction) NOTE 1: This message has local significance; however, it may carry information of global significance. NOTE 2: The facility information element has no upper length limit except that given by the maximum number of octets in a L3 message, see 3GPP TS 44.006[ None ]  [19].