Section: 9.3.10 Hold
Content: This message is sent by the mobile user to request the hold function for an existing call. See table 9.62c/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ]  for the content of the HOLD message. For the use of this message, see 3GPP TS 24.010[ Mobile radio interface  layer 3; Supplementary services specification; General aspects ]  [21]. Message type: HOLD Significance: local Direction: mobile station to network Table 9.62c/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] : HOLD message content