User's Manual

Glossary 67
Manual Revision 1.0 P/N
Network Connection Profiles
A network connection profile is a group of connection settings that define a specific network
connection to the Modem Manager. This includes such settings as network ID, network
password, APN, and DNS addresses.
Packet
A short block of data transmitted across a network.
Packet Size
The size of a packet expressed in bytes.
PC Card
A PC Card is a module similar in size to a credit card and compatible with PCMCIA PC Card
standards. A PC Card can be used to add optional hardware to portable computing devices.
Some examples of such options are adding modems, network cards, disk drive adapters, and
extra memory to devices such as PDAs.
PC Card Slots
The PC Card slots are the sockets in the computing device in which the PC Card is inserted.
It is the hardware interface between the computing device and the PC Card.
Point-to-Point Protocol (PPP)
PPP is an interconnection protocol which allows a device, such as a wireless IP modem, to
connect to a network or the Internet.
Primary Domain Name System
To retrieve the translated IP addresses, the modem will try to connect to the server with the
primary DNS address. If the modem cannot connect to this address, it will try to connect using
the secondary DNS address.
Registration
To send and receive data across a given network, a GPRS modem must first register on a
GSM/GPRS network. This involves the selection of an available channel and interaction with
various systems on the GPRS network to set up a communication path.
Secondary Domain Name System
To retrieve the translated IP addresses, the modem will try to connect to the server with the
secondary DNS address in instances where it cannot connect to the primary DNS address.
Segment
Each IP network address consists of four numeric segments, which are divided by a period
("."). For example, 204.119.63.40.
Service Provider
A company that provides network connections to the Internet.
SIM
The term SIM stands for Subscriber Identity Module.