name: SERVICE ACCEPT
full_form: Service Accept Message
context: The network may activate congestion control for transport of user data via the control plane, as specified in 3GPPÂ TSÂ 23.401Â [10].
  If the congestion control for transport of user data via the control plane is active and if the UE has indicated support for the control plane data back-off timer, the network shall include a value for the control plane data back-off timer T3448 in ATTACH ACCEPT, TRACKING AREA UPDATE ACCEPT, SERVICE ACCEPT or SERVICE REJECT message, and shall store a control plane data back-off time on a per UE basis. The UE starts the timer T3448 with the value informed in the message. To avoid that large numbers of UEs simultaneously initiate deferred requests, the network should select the value for the timer T3448 for the informed UEs so that timeouts are not synchronised.
  The network sends TRACKING AREA UPDATE ACCEPT message or SERVICE ACCEPT message without T3448 value IE to stop the timer T3448 running in the UE as specified in clauseÂ 5.5.3.2.4 and clauseÂ 5.6.1.4.2.
  Based on the stored control plane data back-off time for the UE, the network may reject the transfer of user data via the control plane initiated by the UE.
  While the timer T3448 is running, the UE in EMM-IDLE mode shall not initiate the transport of user data via the control plane procedure (see clauseÂ 6.6.4), except if the UE is allowed to use exception data reporting (see the ExceptionDataReportingAllowed leaf of the NAS configuration MO in 3GPPÂ TSÂ 24.368Â [15A] or the USIM file EFNASCONFIG in 3GPPÂ TSÂ 31.102Â [17]) and the user data is related to an exceptional event.
  Upon entering the state EMM-DEREGISTERED or a new PLMN which is not equivalent to the PLMN where the UE started the timer T3448, or upon being switched off while the timer T3448 is running, the UE shall stop the timer T3448. For further criteria to stop of timer T3448, refer to clauseÂ 5.5.3.2.4 and clauseÂ 5.6.1.4.2.
description: The SERVICE ACCEPT message is used by the network to accept a service request from the UE. Like TRACKING AREA UPDATE ACCEPT, it may include or exclude T3448 value IE for timer control.
explanation: Categorized as a Message because it's involved in the service request and acceptance procedure between the UE and the network.
biotag_Context: O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,B-Message,I-Message,O,B-Message,I-Message,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,B-Device,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,B-Message,I-Message,I-Message,I-Message,I-Message,O,B-Message,I-Message,O,O,B-Parameter,O,B-Message,O,O,O,O,B-Parameter,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Device,O,B-Mode,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,B-Miscellaneous,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O,O,O,B-Network,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O
biotag_Description: O,B-Message,I-Message,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,B-Message,O,O,O