MC55 AT Command Set
9.6 AT+CCFC s
m
obil
e
MC55_ATC_V01.05 Page 224 of 469 2/10/04
Confidential / Released
5...[20]...30 time to wait before call is forwarded, rounded to a multiple of 5 sec. (only for
<reason>=no reply)
0 Call Forwarding not active
1 Call Forwarding active
Notes
• You can register, disable, enable and erase <reason> 4 and 5 as described above. However, querying the
status of <reason> 4 and 5 with AT+CCFC will result in an error ("CME error: Operation not supported"). As
an alternative, you may use the ATD command followed by *'# codes to check the status of these two reasons.
See List of *# Codes for a complete list of *# GSM codes. See also examples below.
• Most networks will not permit registration of new parameters for conditional cal l forwarding (reasons 1,2,3,5)
while unconditional call forwarding is enabled.
• 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 provisione d or not yet subscribed to,
the setting will not take effect regardless of the response returned. The responses in thes e 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.
• Some networks may choose to have certain call forwarding condtions p ermanently enabled (e.g. forwarding
to a mailbox if the mobile is not reachable). In this case, erasure or d eactivation of call forwarding for these
conditions will not be successful, even if the CCFC request is answered with res ponse "OK".
• The command has been implemented with the full set of <class> paramete rs according to GSM 07.07. For
actual applicability of SS "call forwarding" to a specific service or s ervice group (a specific <class> value)
please consult table A.1 of GSM 02.04.
• there is currently no release of GSM standard "GSM 02.04", in which the "Call Forwarding" Supplementary
Service is defined as applicable to SMS services
Example
Please note that when you configure or query call forwarding without specifyi ng any classes, the settings will
refer to classes 1, 2 and 4 only (=default). The handling of classes is equivalent to AT+CLCK.
• To register the destination number for unconditional call forwarding (CFU):
The destination number will be registered for voice, data and fax services (default <class> 7).
In most networks, the registration will also cause call forwarding to be activated for these <class> values .
• To query the status of CFU without specifying <class>:
<time>(num)
<status>(num)
at+ccfc=0,3,"+493012345678",145
OK
at+ccfc=0,2
+CCFC: 1,1,"+493012345678",145
+CCFC: 1,2,"+493012345678",145
+CCFC: 1,4,"+493012345678",145
OK