Specifications

Smart Machine Smart Decision
+CME ERROR: <err>
Parameters
<reason> 0 Unconditional
1 Mobile busy
2 No reply
3 Not reachable
4 All call forwarding
5 All conditional call forwarding
<mode> 0 Disable
1 Enable
2 Query status
3 Registration
4 Erasure
<number> String type (Phone number of forwarding address in format
specified by <type>)
<type> Type of address
<subaddr> String type (subaddress of format specified by <satype>)
<satype> Type of sub-address in integer
<class> 1 Voice (telephony)
2 Data (refers to all
b
earer services; with <mode>=2 this
may refer only to some bearer service if TA does not
support values 16, 32, 64 and 128)
4 Fax (facsimile services)
7 All classes
<time> 1..30 When "no reply" is enabled or queried, this gives the time
in seconds to wait before call is forwarded, default value is
20.Supported only if it is multiples of 5.
<status>
0 Not active
1 Active
Reference
GSM07.07
Note
3.2.6 AT+CCWA Call Waiting Control
AT+CCWA Call Waiting Control
Response
+CCWA: (list of supported <n>s)
OK
Test Command
AT+CCWA=?
Parameter
See Write Command
SIM900_AT Commands Manual_V1.07 51 2012.12.10