Access point name (APN)
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Provides routing information for GPRS. The APN consists of
two parts: the Network ID, which identifies the external service
requested by a user of the GPRS service, and the Operator ID, which
specifies routing information.
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AT
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A set of modem commands, preceded by AT, originally
developed by Hayes, Inc. for their modems. The structure (but not
the specific commands, which vary greatly from manufacturer to manufacturer)
is a de facto industry standard for modems.
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Base Transceiver Station (BTS)
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Located at the cellular service provider network, BTS provides
the radio or the Physical Layer connectivity between the mobile user
and the mobile network.
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Code-Division Multiple Access (CDMA)
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Multiplexing protocols used in wireless communications. CDMA
is used by Sprint and Verizon cellular networks.
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Control and Status (CNS) message
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These messages are used to:
- Query 3G modem status
- Set parameters and configuration of the 3G modem device
- Control the traffic of event notifications from the 3G
modem device
- Receive event notification from modem device
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Diagnostic Mode (DM)
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Qualcomm Diagnostic Mode is the protocol specification and mechanism
that is used to allow collection of debug logs from Sierra 3G wireless
modem firmware.
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dial backup
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Feature that reestablishes network connectivity through one
or more backup dialer interfaces after a primary interface fails.
When the primary interface is reestablished, the backup is disconnected.
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dialer interface
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Logical interface for configuring properties for a 3G wireless
modem connection.
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dialer pool
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One or more physical interfaces that are associated with a dialer
profile.
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dialer profile
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Set of characteristics configured for the 3G wireless modem
interface. Dialer profiles allow the configuration of physical interfaces
to be separated from the logical configuration of dialer interfaces
required for 3G wireless modem connectivity. This feature also allows
physical and logical interfaces to be bound together dynamically on
a per-connection basis.
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Evolution Data Optimized (EV-DO)
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Standard for transmitting data through radio signals.
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Electronic Serial Number (ESN)
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Number that is printed on the 3G wireless modem card itself.
You can also use the show modem wireless interface firmware command to display this number.
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General Packet Radio Services (GPRS)
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Packet-based wireless service used in GSM networks.
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Global System for Mobile Communications (GSM)
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Standard used by AT&T and T-Mobile cellular networks.
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High Speed Downlink Packet Access (HSDPA)
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3G mobile communications protocol.
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Internet-based Over the Air (IOTA)
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Activation method used by cellular network providers such as
Sprint for CDMA EV-DO 3G wireless modem cards.
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Over the Air Service Provisioning (OTASP)
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Activation method used by cellular network providers such as
Verizon for CDMA EV-DO 3G wireless modem cards.
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Preferred Roaming List (PRL)
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File that contains information for accessing the device's home
network, as well as the service provider's roaming partners.
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Subscriber Identity Module (SIM)
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Detachable smart card on the GSM HSDPA 3G wireless modem.
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