Examples: Call Forwarding - Siemens TC37 Module At Command Reference

AT Command Set
Reference
GSM 07.07,
GSM 02.04,
GSM 02.82

4.6.1 Examples: Call forwarding

Please note that when you configure or query call forwarding without specifying any classes, the
settings will refer to classes 1, 2 and 4 only (=default). The handling of classes is equivalent to
AT+CLCK (Chapter 4.18.3).
Example 1
Example 2
TC3X_ATC_01_V04.00
<class> integer or sum of integers each representing a <class> of
information:
1 voice
2 data
4 fax
8 short message service
16 data circuit sync
32 data circuit async
64 dedicated packet access
128 dedicated PAD access
x combination of some of the above classes.
For example, the default setting 7 represents the sum of
the integers 1, 2 and 4 (CF for voice, data and fax). The
value 255 covers all classes. If the <class> parameter is
omitted, the default value 7 is used.
<time> time to wait before call is forwarded, rounded to a multiple of 5 sec..
1...20..30 (only for <reas>=no reply)
<status> 0 not active
1 active
Note
· Please note that you can register, disable, enable and erase <reas>
4 and 5 as described above. However, it is not possible to query the status
of <reas> 4 and 5 with AT+CCFC. Instead, you may use the ATD
command followed by *'# codes to check the status of these two reasons.
See Chapter 7.4 for a complete list of *# GSM codes. See also examples
below.
· The AT+CCFC command offers a broad range of call forwarding options
according to the GSM specifications. However, when you attempt to set a
call forwarding option which is not provisioned or not yet subscribed to, the
setting will not take effect regardless of the response returned. The
responses in these cases vary with the network (for example "OK",
"Operation not allowed", "Operation not supported" etc.). To make sure
check the call forwarding status with <mode>=2.
To register the destination number for unconditional call forwarding (CFU):
at+ccfc=0,3,"+493012345678",145
OK
Remember that call forwarding will be activated for voice, data and fax
(default classes) when you register the destination number.
To query the status of CFU without specifying <class>:
at+ccfc=0,2
+CCFC: 1,1,"+493012345678",145
+CCFC: 1,2,"+493012345678",145
Page 65 of 204 29.05.2002