Siemens MC35 User Manual
AT Command Set
MC35_ATC_01_V05.00
Page 204 of 256
15.07.2002
8.18 AT^SM20 Set M20 Compatibility
Test command
AT^SM20=?
Response
OK
Read command
AT^SM20?
Response
^SM20: <n>,<m>
OK
OK
Parameters
See write command
Write command
AT^SM20=<n>
Response
M20 is an earlier, widely used SIEMENS GSM engine. The AT^SM20 com-
mand controls the behaviour of the ATD and AT+CMGW commands as de-
scribed below. Please note that the AT^SM20 command has no effect on any
other features and is not intended to adjust other differences between M20 and
MC35.
OK
mand controls the behaviour of the ATD and AT+CMGW commands as de-
scribed below. Please note that the AT^SM20 command has no effect on any
other features and is not intended to adjust other differences between M20 and
MC35.
OK
Parameters
<n>
Execution of the ATD command during voice calls
0
Compatible to x35 mobiles.
If this mode is active, TA returns OK when dialling was
completed.
If this mode is active, TA returns OK when dialling was
completed.
1
Compatible to M20.
If the M20 mode is active, TA returns OK once the call is
successfully set up.
Issuing any command before TA returns OK will cancel the
call setup.
If the M20 mode is active, TA returns OK once the call is
successfully set up.
Issuing any command before TA returns OK will cancel the
call setup.
<m>
Execution of AT+CMGW command (writing SMS to memory)
0
Compatible to x35 mobiles.
If this mode is active, TA returns +CMS ERROR: <err>
when writing of SMS fails. See Chapter 9.1.3 for a list of
result codes.
If this mode is active, TA returns +CMS ERROR: <err>
when writing of SMS fails. See Chapter 9.1.3 for a list of
result codes.
1
Compatible to M20.
If the M20 mode is active, TA returns OK, no matter whether
or not AT+CMGW was successfully executed.
If the M20 mode is active, TA returns OK, no matter whether
or not AT+CMGW was successfully executed.
Reference
Siemens
Note