User guide

3GPP TS 27.007 AT COMMANDS
63 AT Commands for EV-DO-EV3 Modems
Example
ATD03282131321;
OK
AT+CPAS
+CPAS: 4
A call is in progress.
OK
ATH
OK
Set Phone Functions +CFUN
Set command selects the level of function in the ME.
Read command reports the current setting of <fun>.
Test command returns the list of supported values for <fun> and <rst>.
Syntax
Command Command type
AT+CFUN=[<fun>[,<rst>]] Set
AT+CFUN? Read
AT+CFUN=? Test
Parameters and Values
<fun> Power saving function mode.
0 Minimum functions, NON-CYCLIC SLEEP mode. In this mode, the AT interface is
not accessible. Consequently, once you have set <fun> level 0, do not send
further characters. Otherwise these characters remain in the input buffer and
may delay the output of an unsolicited result code. The first wake-up event stops
power saving and takes the ME back to a fully functioning level <fun>=1.
1 Mobile full functions with power saving disabled. Default: 1.
2 Disable TX.
4 Disable both TX and RX.
5 Mobile full functions with power saving enabled.
<rst> Reset flag.
0 Do not reset the ME before setting it to <fun> function level.
Notes
 Issuing AT+CFUN=4[,0] causes the module to perform either a network deregistration or a SIM deactivation.
 If power saving enabled, it reduces the power consumption during the idle time, thus allowing a longer
standby time with a given battery capacity.
 To place the module in power saving mode, set the <fun> parameter at value = 5 and the line DTR (RS232)
must be set to OFF. Once in power saving, the CTS line switch to the OFF status to signal that the module is
really in power saving condition.
 During the power saving condition, before sending any AT command on the serial line, the DTR must be set
to ON (0V) to exit from power saving and it must be waited for the CTS (RS232) line to go in ON status.