Ublox SARA-R4 Series - Configure Dormant Close Socket Behavior +USOCLCFG

SARA-R4/N4 series-AT Commands Manual
UBX-17003787 - R09
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18Internet protocol transport layer
Page 202 of 307
18.24Configure Dormant Close Socket Behavior +USOCLCFG
+USOCLCFG
SARA-R410M-02B SARA-R410M-52B SARA-R412MModules
SARA-N4
Syntax PIN required Settings saved Can be aborted Response time Error referenceAttributes
full Yes NVM No - +CME Error
18.24.1Description
Enables or disables the TCP socket Graceful Dormant Close feature. When enabled, if the RRC connection is
released and a TCP socket is closed with the +USOCL, the module will re-establish the RRC connection to close
the socket both locally and remotely. When this feature is disabled, the module will close the socket locally
without re-establishing the RRC connection. In this case the socket will remain open on the remote side until
it is closed.
18.24.2Syntax
Type Syntax Response Example
Set AT+USOCLCFG=<GDC_enable> OK AT+USOCLCFG=0
OK
Read AT+USOCLCFG? +USOCLCFG: <GDC_enable>
OK
+USOCLCFG: 0
OK
Test AT+USOCLCFG=? +USOCLCFG: (list of supported
<GDC_enable>s)
OK
+USOCLCFG: (0,1)
OK
18.24.3Defined values
Parameter Type Description
<GDC_enable> Number Status of TCP socket Graceful Dormant Close. Allowed values:
• 0: disabled
• 1 (factory-programmed value): enabled