User guide

Developers guidelines | AT commands
115 June 2010
AT+CSSN Supplementary service notification (ver. 2)
Description: This command refers to supplementary service related network initiated
notifications. The set command enables/disables the presentation of notifi-
cation result codes from TA to TE.
When <n>=1 and a supplementary service notification is received after a
mobile originated call setup, the unsolicited result code +CSSI:
<code1>[,<index>] is sent to TE before any other MO call setup result
codes presented in this ETS or in V.25ter. When several different
<code1>s are received from the network, each of them has its own +CSSI
result code.
When <m>=1 and a supplementary service notification is received during a
mobile terminated call setup, during a call or when a forward check sup-
plementary service notification is received, the unsolicited result code
+CSSU: <code2>[,<index>] is sent to TE. In case of ME call setup, result
code is sent after every +CLIP result code and when several different
<code2>s are received from the network, each of them has its own
+CSSU result code.
Test command returns values supported by the TA as a compound value.
Set command: AT+CSSN=[<n>[,<m>]]
Read command: AT+CSSN?
Read command
response: +CSSN: <n>,<m>
Test command: AT+CSSN=? Shows if the command is supported.
Test command
response: +CSSN: (list of supported <n>s),(list of supported <m>s)
Parameters:
<n>:
<n> Description
0 Disable the +CSSI result code presentation status
in the TA. Default value
1 Enable the +CSSI result code presentation status in
the TA
<m>:
<m> Description
0 Disable the +CSSU result code presentation status
in the TA. Default value
1 Enable the +CSSU result code presentation status
in the TA
<code1>:
<code1> Description
0 Unconditional call forwarding is active
1 Some of the conditional call forwarding are active
2 Call has been forwarded
3 Call is waiting