Sierra Wireless MC8775 Reference Manual page 38

MC87xx Extended AT Command Reference
Table 3-2: Modem status, customization, and reset commands (Continued)
Command
!GCFEN?
!GCFEN=?
!GCFEN=<enableFlag>
Supporting Mini Cards:
•
All
Note: Only the assignment
operation ("=") is password-
protected.
!GCFUIMTYPE?
!GCFUIMTYPE=?
!GCFUIMTYPE=
<simType>
Supporting Mini Cards:
•
All
Note: Only the assignment
operation ("=") is password-
protected.
38
Enable / disable GCF test mode
This command is used to place the modem in GCF testing mode or normal
operating mode.
Usage:
•
AT!GCFEN? returns the current <enableFlag> value.
•
AT!GCFEN=? returns a list of supported <enableFlag> values in the
format <enableFlag> – <description>.
•
AT!GCFEN=<enableFlag> places the modem in GCF testing mode or
normal operating mode.
Parameters:
<enableFlag> (enable / disable GCF testing):
•
0 = Disable GCF test mode (Default) — This value is used for normal
operations.
•
1 = Enable GCF test mode.
Query / set current SIM type
This command is used to indicate (for GCF testing) the type of SIM that is
installed in the module.
Usage:
•
AT!GCFUIMTYPE? returns the type of SIM that is installed in the
module (the current <simType> value).
•
AT!GCFUIMTYPE=? returns a list of supported SIM types in the
format <simType> – <description>.
•
AT!GCFUIMTYPE=<simType> is used to indicate the type of SIM that
is installed—the SIM type (2G SIM or 3G USIM) determines how the
module behaves for GCF testing and normal operation. During GCF
testing, using the 2G SIM type enables the module to pass some tests
that cannot be passed using the 3G USIM type.
Parameters:
<simType> (Installed SIM type):
•
0 = 2G SIM — This value is required in order to pass GCF testing.
•
1 = 3G USIM (Default) — This value should be used for normal opera-
tions.
Description
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