name: SMS
full_form: Short Message Service
context: The UE mode of operation can change as a result of e.g.:
  -	a change of UE's usage setting for a CS voice capable UE;
  -	a change of voice domain preference for E-UTRAN as defined in 3GPPÂ TSÂ 24.167Â [13B] for a CS voice capable UE;
  -	a change in the UE's availability for voice calls in the IMS; or
  -	a change in UE configuration regarding the use of SMS as defined in 3GPPÂ TSÂ 24.167Â [13B].
  FigureÂ 4.3.2.1.1 and figureÂ 4.3.2.1.2 illustrate the transitions between different UE mode of operations when UE's usage settings, voice domain preference for E-UTRAN or configuration regarding SMS changes.
  NOTEÂ 1:	The UE may transit from CS/PS mode 1 to PS mode 1 or from CS/PS mode 2 to PS mode 2 if "CS domain not available" is received. After the transition to PS mode 1 or PS mode 2 due to "CS domain not available", the UE can transit back to CS/PS mode 1 or CS/PS mode 2, e.g. due to change of PLMN which is not in the list of the equivalent PLMNs.
  NOTEÂ 2:	Not all possible transitions are shown in this figure.
  Figure 4.3.2.1.1: Change of UE mode of operation for a CS voice capable UE
  NOTE:	Not all possible transitions are shown in this figure.
  Figure 4.3.2.1.2: Change of UE mode of operation for a UE with no CS voice capability
description: The SMS refers to the Short Message Service, which is a service that allows users to send and receive short text messages. Changes in UE configuration regarding SMS use can affect the UE's mode of operation and trigger transitions between different modes.
explanation: SMS is categorized as a Service because it describes a specific type of messaging service.
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biotag_Description: O,B-Service,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,B-Service,O,O,O,O,O,O,O,O,O,O,O,O,O,O