Digi X2 - Manual (Page 186)

M o n i t o r i n g c a p a b i l i t i e s i n t h e w e b i n t e r f a c e
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Mobile Information
IMSI
International Mobile Subscriber Identifier (IMSI), a unique 15-digit number which
designates the subscriber. This ID is the subscriber's code to access the cellular network,
and is used by the network for provisioning and to admit the device/user to its
provisioned services.
Phone Number
The phone number used to call the modem module. Two numbers are displayed: the
Mobile Directory Number (MDN) and the Mobile Identification Number (MIN).
Modem Manufacturer
The manufacturer of the modem module.
Model
The model name of the modem module.
Modem Serial Number
The serial number of the modem module.
Modem Revision
The firmware revision in the modem module.
Other Mobile Information
Depending on your mobile service provider, other mobile information and settings may
be provided after the modem revision.