User's Manual

ManualsBrandsSiemens ManualsNetwork RouterMC35

AT Command Set

MC35_ATC_01_V04.00 Page 71 of 238 02.04.2002

6 CYCLIC SLEEP mode:

AT+CFUN=6 disconnects any circuit-switched call in prog-

ress, but has no effect on a GPRS call. The ME goes into

the power saving mode 10 minutes after the last character

was transmitted over the serial interface. Sending charac-

ters over the serial interface resets the timer.

The first wake-up event stops power saving. Also, you can

enter AT+CFUN=1 to terminate power saving.

<rst> 0 The <rst> parameter can only be used if +CFUN=1, 5 or 6.

Due to the command syntax, you need to enter <fun>,

followed by <rst>, where <fun> is only a placeholder and

has no effect. See examples below.

1 ME resets and restarts to full functionality.

After reset and restart, PIN 1 authentication is necessary.

Therefore, you are required to use AT+CPIN again. If

autobauding is enabled it is recommended to wait 3 to 5

seconds before entering the first AT command. For details

on autobauding refer to Chapter 2.45.1

Reference

GSM 07.07

Note

• In multiplex mode, the CFUN profile is shared by all multiplexer channels.

When you change the CFUN state on one logical channel, all other logical

channels adopt the same state.

Example 1

To check the level of functionality use the read command:

AT+CFUN?

+CFUN: 1 Default mode after ME was restarted.

Remember that the AT interface is not accessible in NON-CYCLIC SLEEP

mode. Consequently, the read command is only useful when the ME is set to

full functionality or, when <fun> is set to 5or 6.

AT+CFUN?

+CFUN: 5 CYCLIC SLEEP mode.

Example 2

To set the ME to NON-CYCLIC SLEEP mode enter

AT+CFUN=0

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 Note that the URC used in this example will appear

only if CMTI=1,1 was configured before. See Chapters

5.10 and 9.1.4.

After this, you may want to verify the operating status:

AT+CFUN?

+CFUN: 1 Indicates that ME has entered full functionality mode.

Example 3

To enable CYCLIC SLEEP mode, level 6:

AT+CFUN=6