BGS2T AT Command Set
15.1 Usage of Remote-SAT
BGS2T_ATC_V01.301 Page 420 of 554 1/31/12
c
15.1.5 Icon Handling
Several SAT Proactive commands may provide an icon identifier. Icons are intended to enhance the MMI by pro-
viding graphical information to the user. The display of icons is optional for the ME.
The SIM indicates to the ME whether the icon replaces an alpha identifier or text string, or whether it accompa-
nies it (icon qualifier).
If both an alpha identifier or text string, and an icon are provided with a proactive command, and both are
requested to be displayed, but the ME is not able to display both together on the screen, then the alpha identifier
or text string takes precedence over the icon.
If the SIM provides an icon identifier with a proactive command, then the ME shall inform the SIM if the icon could
not be displayed by sending the response "Command performed successfully, but requested icon could not be
displayed" (via AT^SSTR).
Icon data can be fetched directly from the SIM via command AT+CRSM, for details please refer to 3GPP TS
11.11 [14], Annex G. Icon data can be read from the SIM on system start then cached.
15.1.6 Using SMS Related AT Commands
ME activities triggered by SAT often end in sending or receiving short messages. Usually, a short message con-
taining a service request is sent to the network, for example a request to send the latest news. Subsequently,
the network returns a short message containing the requested information. This short message needs to be read
by the Customer Application.
Set SMS text mode
AT+CMGF=1
Activate the display of a URC on every received SMS
AT+CNMI=1,1
If needed activate extended SMS text mode parameter output
AT+CSDH=1
This is useful in order to obtain more detailed header information along with the incoming SMS (e.g. SMS class).
Please refer to 3GPP TS 23.038 [27] for details.
As a result, a URC will be output each time a short message is received
"+CMTI": "MT", 1 where
• the first parameter "MT" specifies the storage type of the SMS
• the second parameter contains a unique location number.
In the given example, the short message was stored to the memory type "MT" at location number 1.
The short message storage "MT" is a logical storage. It is the sum of the two physical storages "ME" (GSM Mobile
Engine message storage) and "SM" (SIM message storage). For more detailed information please refer
AT+CPMS and AT^SSMSS.
To read the SMS data use
AT+CMGR=<location>
where <location> is the location number of the received SMS, e.g. 1 in the example above.
To list all stored short messages use
AT+CMGL="ALL"
To delete a certain SMS after reading use
AT+CMGD=<location>
To Next Page
Loading...
