Telit Wireless Solutions LE910-SKG, At Commands Reference Manual

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LE910-SKG AT commands reference guide
80437ST10619A Rev.1 – 2014-09-16
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#STIA - SIM Tookit Interface Activation
0 - clear message after a delay
1 - wait for user to clear message
<text> - (optional) text to be displayed to user
In this case:
1.
if <cmdDetails>/bit8 is 0 neither #STGI nor #STSR commands are
required:

AT#STGI is accepted anyway.

AT#STSR=<cmdType>,0 will answer OK but do nothing.
2. If <cmdDetails>/bit8 is 1 #STSR command is required
if <cmdType>=18 (SEND USSD)
an unsolicited notification will be sent to the user:
#STN: <cmdType>[,<text>]
where:
<text> - optional text string sent by SIM
In this case:

AT#STSR=18,20 can be sent to end USSD transaction.

AT#STGI is accepted anyway.

AT#STSR=<cmdType>,0 will answer OK but do
nothing.
All other commands:
the unsolicited indication will report just the proactive command type:
#STN: <cmdType>
Note: if the call control or SMS control facility in the SIM is activated, when the
customer application makes an outgoing call, or sends an SS or USSD, or an SMS,
the following
#STN unsolicited indication could be sent, according to 3GPP TS
31.114, to indicate whether the outgoing call has been accepted, rejected or
modified by the SIM, or if the SMS service centre address or destination has been
changed:
#STN: <cmdTerminateValue>,<Result>[,<TextInfo>[,<Number>
[,<MODestAddr>]]]
where
<cmdTerminateValue>