MC55 AT Command Set
14.1 AT^SSTA s
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MC55_ATC_V01.05 Page 363 of 469 2/10/04
Confidential / Released
Command Description
The read command can be used to request the current operating status and the used alphabet of the Remote-
SAT interface.
The write command is used to activate the AT command interface of the SIM A pplication Toolkit in the MC55 and
needs to be issued after every power on. However, removing and inserting the SIM does no t affect the activation
status.
SAT commands which are not using the AT interface (non MMI related SAT c ommands , e.g. PROVIDE LOCAL
INFORMATION) could be executed without activating Remote-SAT.
Parameter Description
MC55 Remote-SAT interface states
0 RESET
1OFF
2IDLE
3PAC
4WAIT
0 GSM character set
Input of a character requests one byte, e.g. "Y".
1 UCS2
To display the 16 bit value of characters represented in UCS2 alphabet a 4 byte
string is required, e.g. "0059" is coding the character "Y". For deta ils please
refer to ISO/IEC 10646.
0 SAT is already used on another instance (logical channel in case of the multi-
plex protocol). Only test and read commands can be used.
1 SAT may be started on this instance via the write version of this com mand.
SAT profile according to GSM 11.14 [19].
The profile tells the SIM Application which features (e.g. proactive c ommands) are supported by the SIM Appli-
cation Toolkit implementation of the MC55.
1Activate Remote-SAT
Note
• To limit the time Remote-SAT is kept in states PAC or WAIT any ongoing (but unanswered) Proactive Com-
mand is automatically aborted after 10 minutes with Terminal Response "ME currently unable to process com-
mand" or "No response from user" if applicable. An URC "Terminate Proactive Command" will be send to th e
external application in this case, too.
<state>(num)
<Alphabet>(num)
<allowedInstance>(num)
<SatProfile>(str)
<mode>(num)