Section: 9.2.5a CM service prompt $(CCBS)$
Content: A mobile station that does not support the "Network initiated MO call" option shall treat this message as a message with message type not defined for the PD. This message is sent by the network to the mobile station to request the mobile to establish a service for the specified CM protocol using the specified SAPI, e.g. circuit switched connection establishment on SAPI 0, supplementary services activation on SAPI 0, or short message transfer on SAPI 3. See Table 9.2.7/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] . Message type: CM SERVICE PROMPT Significance: dual Direction: network to mobile station Table 9.2.7/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] : CM SERVICE PROMPT message content