Siemens TC37 Module At Command Reference page 70

AT Command Set
Reference Note
GSM 07.07
· To check that ME has entered the SLEEP mode, it is recommended to
· When in SLEEP mode, the following events may cause the ME to wake up:
· In multiplex mode, the CFUN profile is shared by all multiplexer channels.
Example 1 To check the level of functionality use the read command:
AT+CFUN?
+CFUN: 1
Remember that the AT interface is not accessible in SLEEP mode.
Consequently, the read command is only useful when the ME is set to full
functionality.
Example 2
To set the ME to SLEEP mode enter
AT+CFUN=0
OK
When, for example, an SMS is being received and indicated by an unsolicited
result code (URC), the ME wakes up to full operation.
+CMTI: "SM",5
After this, you may want to verify the operating status:
AT+CFUN?
+CFUN: 1
Example 3
To reset and restart the ME:
AT+CFUN=1,1 or alternatively, AT+CFUN=0,1
OK
^SYSSTART
After the GSM engine was reset and restarted you are required to enter PIN 1:
AT+CPIN
+CPIN: SIM PIN
OK
TC3X_ATC_01_V04.00
measure the supply current. Depending on the configuration of the SYNC
pin, the SLEEP mode may also be indicated by a status LED (see
„AT^SSYNC Configure SYNC Pin", pg. 177).
incoming call, Real Time Clock alarm, falling edge of RTS (RS-232, 2.65V
CMOS level) and receipt of an unsolicited result code (URC, see chapter
7.1.3).
When you change the CFUN state on one logical channel, all other logical
channels adopt the same state.
Default mode after ME was restarted.
Note that the URC used in this example will appear
only if CMTI=1,1 was configured before. See Chapters
5.10 and 7.1.3.
Indicates that ME has entered full functionality mode.
Note that ^SYSSTART appears only if AT+IPR¹0. If the
ME is in autobaud mode, it is recommended to wait 3 to
5 seconds before entering the first AT command.
Page 70 of 204 29.05.2002