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ESIM022 User manual v1.1
network and system operation (see
2.2. Main Unit, LED Indicator & Connector Functiona-
lity
for more details).
7. Set the phone number for User 1.
8. Set system date and time.
9. Once the system is fully configured, it is ready for use.
ATTENTION:
The system is NOT compatible with pure 3G SIM cards. Only 2G/GSM SIM cards
and 3G SIM cards with 2G/GSM profile enabled are supported. For more details, please con-
tact your GSM operator.
ATTENTION:
We also recommend you to disable
call forwarding, voice mail/text mes-
sage reports on missed/busy calls
and similar services that might cause incorrect sys-
tem operation. Please contact your GSM operator for more details on these services and
how to disable them.
NOTE:
For maximum system reliability we recommend you do NOT use a Pay As You Go
SIM card. Otherwise, in the event of insufficient credit balance on the SIM card, the system
would fail to make a phone call or send SMS text messages.
NOTE:
We advise you to choose the same GSM SIM provider for your system as for your
mobile phone. This will ensure the fastest, most reliable SMS text message delivery service
and phone call connection.
NOTE:
Even though the installation process of ESIM022 is not too complicated, we still
recommend to perform it by a person with basic knowledge in electrical engineering and
electronics to avoid any system damage.
