Delta DX-2100 Series User Manual page 24

DX - 2 1 00 Ser i es I nd us t r i al 3G C lo u d Ro u ter
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Operator
Select Auto or Others for the Operator from the dropdown list.

Auto: the system will detect the operator from the inserted SIM card
and set up accordingly.

Others: users can set up the operator manually.
Dial-Up Number
This number is provided by the operator. When "Auto" is selected, the
3 - 8
Description Default
AUTO
*99#