8.2 Set phone functionality +CFUN

27.0073GPPAT command set for User Equipment (UE)Release 18TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

Table 61: +CFUN parameter command syntax

Command	Possible response(s)
+CFUN=[<fun>[,<rst>]]	+CME ERROR: <err>
+CFUN?	+CFUN: <fun> +CME ERROR: <err>
+CFUN=?	+CFUN: (list of supported <fun>s),(list of supported <rst>s) +CME ERROR: <err>

Description

Set command selects the level of functionality <fun> in the MT. Level "full functionality" is where the highest level of power is drawn. "Minimum functionality" is where minimum power is drawn. Level of functionality between these may also be specified by manufacturers. When supported by manufacturers, MT resetting with <rst> parameter may be utilized. Refer clause 9.2 for possible <err> values.

NOTE 1: It is manufacturer specific if this command affects network registration. Command Operator Selection +COPS is used to force registration/deregistration.

Read command returns the current setting of <fun>.

Test command returns values supported by the MT as compound values.

Defined values

<fun>: integer type

0 minimum functionality

1 full functionality. Enable (turn on) the transmit and receive RF circuits for all supported radio access technologies. For MTs supporting +CSRA, this equals the RATs indicated by the response of +CSRA=?. Current +CSRA setting is ignored. It is not required that the MT transmit and receive RF circuits are in a disabled state for this setting to have effect.

2 disable (turn off) MT transmit RF circuits only

3 disable (turn off) MT receive RF circuits only

4 disable (turn off) both MT transmit and receive RF circuits

5…127 reserved for manufacturers as intermediate states between full and minimum functionality

128 Full functionality with radio access support according to the setting of +CSRA. Enables (turns on) the transmit and receive RF circuits if not already enabled. This <fun> setting is applicable for MTs supporting +CSRA.

129 Prepare for shutdown. This setting has its prime use when some of the MT’s resources (e.g. file system) are located on a tightly integrated TE (host). The MT will execute pending actions resulting in "permanent" changes, e.g. execute pending file system operations. The MT will also make an orderly network detach. After this action and +CFUN has returned OK, the MT can be shut down with <fun>=0, or by other means. After setting <fun>=129, only <fun>=0 is valid. All other values will make +CFUN return ERROR.

<rst>: integer type

0 do not reset the MT before setting it to <fun> power level

NOTE 2: This shall be always default when <rst> is not given.

1 reset the MT before setting it to <fun> power level

Implementation

Optional. When <fun>=128, is supported, +CSRA is required.