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ESIM384 Installation and Configuration Manual v1.1
•
Via GSM network
– Once enabled, the system automatically sends a date/time request to the GSM operator. this method is the
most accurate synchronization method. Some GSM operators might not support it.
•
By SMS text message
– Once enabled, the system automatically sends the SMS text message to its own phone number and re-
trieves the date and time from the SMS text message reply, as the included date and time is set by the SMSC (SMS center). this
method is not as accurate as the synchronization via GSM network, but always effective.
By default, synchronization via GSM network is disabled. to enable/disable automatic date and time synchronization via GSM network,
please refer to the following configuration methods.
Enable/disable
synchronization via
GSM network
ElDES
Config-
uration
software
this operation may be carried out from the PC using the
ELDES Configuration
software.
By default, synchronization by SMS text message is disabled. to enable/disable automatic date and time synchronization by SMS text mes-
sage, please enter/remove device phone number using one of the following configuration methods.
Enter/remove device
phone number for
synchronization by
SMS text message
ElDES
Config-
uration
soft-
ware
this operation may be carried out from the PC using the
ELDES Configuration
software.