Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 97 2012.12.10
(default 0)
Reference
GSM 03.38 [25]
Note
3.2.58 AT+CSSN Supplementary Services Notification
AT+CSSN Supplementary Services Notification
Response
+CSSN: (list of supported <n>s),(list of supported <m>s)
OK
Test Command
AT+CSSN=?
Parameters
See Write Command
Response
+CSSN: <n>,<m>
OK
Read Command
AT+CSSN?
Parameters
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Unsolicited Result Code
+CSSI: <code1>[,<index>]
+CSSU: <code2>
Write Command
AT+CSSN=<n>[,
<m>]
Parameters
<n> A numeric parameter which indicates whether to show the
+CSSI: <code1>[,<index>] result code presentation status
after a mobile originated call setup
0 disable
1 enable
<m> A numeric parameter which indicates whether to show the
+CSSU: <code2> result code presentation status during a
mobile terminated call setup or during a call, or when a
forward check supplementary service notification is received.
0 disable
1 enable
<code1> 0 Unconditional call forwarding is active
1 Some of the conditional call forwarding are active
2 Call has been forwarded
3 Call is waiting
4 This is a CUG call (also <index> present)