Siemens TC37 Module At Command Reference page 201

AT Command Set
Example 5
Example 6
Example 7
TC3X_ATC_01_V04.00
atd*#21**10#;
^SCCFC: 0,1,1,"+493038649027",145
^SCCFC: 0,1,4,"+493038649027",145
OK
The response does not include SMS, since no call forwarding for SMS is not
active.
To query the status of CFU for voice + SMS + data:
atd*#21**10#;
^SCCFC: 0,0,7
OK
No CFU enabled for voice + SMS + data.
To register and activate CFU for asynchronous data mode ("Data circuit
asynchron"):
atd**21*0301234567*25#
^SCCFC: 0,1,2,"+49301234567",145
OK
To query the status of CFU for asynchronous data mode:
If CFU is not active the response is not specific to asynchronous data mode.
atd*#21**25#;
^SCCFC: 0,0,7
OK
If CFU is enabled for asynchronous data mode the response is as follows:
atd*#21**25#
^SCCFC: 0,1,2,"+49301234567",145
OK
Page 201 of 204 29.05.2002