Specifications

Modem Status, Customization, and Reset Commands
Rev. 8 May.12 Proprietary and Confidential 53
!GCFEN
Supporting chipsets:
• All
Note: Only the execution
operation (“=”) is password-
protected.
Enable/disable GCF test mode
Place the modem in GCF testing mode or normal operating mode.
Usage:
• Execution: AT!GCFEN=<enableFlag>
Response:
OK
Purpose: Place the modem in GCF testing mode or normal operating mode.
• Query: AT!GCFEN?
Response:
!GCFEN:
<enableFlag>
OK
Purpose: Display the modem’s current mode.
• Query List: AT!GCFEN=?
Purpose: Return a list of supported <enableFlag> values.
Parameters:
<enableFlag> (Enable/disable GCF testing)
• 0 = Disable GCF test mode (Default) — This value is used for normal operations.
• 1 = Enable GCF test mode.
!GCFUIMTYPE
Supporting chipsets:
• All
Note: Only the execution
operation (“=”) is password-
protected.
Set/return current SIM type
Indicate (for GCF testing) the type of SIM that is installed in the module.
Usage:
• Query: AT!GCFUIMTYPE?
Response:
!GCFUIMTYPE:
<simType>
Purpose: Return the type of SIM that is installed in the module (the current
<simType> value).
• Query list: AT!GCFUIMTYPE=?
Purpose: Return a list of supported SIM types.
• Execution: AT!GCFUIMTYPE=<simType>
Response:
OK
Purpose: 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 to pass GCF testing.
• 1 = 3G USIM (Default) — This value should be used for normal operations.
Table 3-2: Modem status, customization, and reset commands (Continued)
Command Description