NetModule NB1600 User Manual page 35

Configuration
A SIM card is generally assigned to a default modem but might be switched, for instance
if you set up two WWAN interfaces with one modem but different SIM cards.
Close attention has to be paid when other services (such as SMS or Voice) are operating
on that modem, as a SIM switch will naturally affect their operation.
The following settings can be applied:
Default modem: The default modem assigned to this SIM card
Service type: The service type to be used by default with this SIM card. Remember
that the link manager might change this in case of different settings. The default
is to use automatic, in areas with interfering base stations you can force a specific
type (e.g. 3G-only) in order to prevent any flapping between the stations around.
PIN protection: Depending on the used card, it can be necessary to unlock the SIM
with a PIN code. Please check the account details associated with your purchased
SIM and figure out whether it is protected with a PIN.
PIN code: The PIN code for unlocking the SIM card
SMS gateway: The service center number for sending short messages. It is generally
retrieved automatically from your SIM card but you may define a fix number here.
Network
This page provides information about the current network status, signal strength and
the Local Area Identifier (LAI) to which the modem has been registered. An LAI is
a globally unique number that identifies the country, network provider and Local Area
Code (LAC, group of base stations) of any given location area. It can be used to force
the modem to register to a particular mobile cell in case of competing stations.
You may further initiate a mobile network scan for getting networks in range and assign
an LAI manually.
Query
This page allows you to send Hayes AT commands to the modem. Besides the 3GPP-
conforming AT command-set further modem-specific commands can be applicable which
we can provide on demand. Some modems also support running Unstructured Supple-
mentary Service Data (USSD) requests, e.g. for querying the available balance of a
prepaid account.
NB1600 User Manual
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