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The table shows the SIM 1 and SIM 2 parameters.
PIN – enter the PIN code for SIM card unlocking. Used if the PIN is requested.
Roaming – enable the roaming function.
Lock network – enter the network number for the main unit to log in; if you leave
it empty, a network will be selected automatically.
Network technology – select the network technology (technologies) to you can
log in.
Note
If a combination of network technologies is selected, the fastest
available network is always chosen.
LTE (4G) network of 4th generation
UMTS (3G) network of 3rd generation
GSM (2G) network of 2nd generation