User Manual

BGAN Terminal User's Guide 99
Inmarsat recommends that you switch on header compression
for multimedia applications, such as video.
IP Address: An Internet Protocol address, or IP address, is a number
that identifies the computer that is sending or receiving
information transmitted over the Internet. An IP address is made
up of four groups of numbers between 0 and 255, separated by
periods. For example, 207.115.79.4 is an IP address. In the BGAN
system, IP addresses can be dynamic or static.
Dynamic IP Address: A dynamic IP address is a temporary
address that is assigned by your Internet Service Provider (ISP)
when you connect to the Internet. If you do not need a
permanent IP address, Inmarsat recommends that you
obtain a dynamic IP address. Normally, individual users of the
Internet use a dynamic IP address.
Static IP Address: A static IP address is assigned permanently,
and is used every time you connect to the Internet. Normally,
companies and other organizations that have their own
networks use static IP addresses.
Standard: A standard connection is charged per Mb. You are
charged only for the transmitted data. The bandwidth you are
allocated depends on terminal type and network availability,
but is always ‘best effort’, that is, you are allocated bandwidth
depending on your requirements and the requirements of other
users of the BGAN network, or BGAN Terminal. This connection
class is suitable for most data types, other than multimedia.
Streaming: A streaming connection is charged by time. You are
charged for the amount of time the connection is active.
Streaming enables multimedia data, such as video, to be sent in
a continuous data stream and converted into sound and
pictures. The bandwidth required for a streaming connection is
difficult to predict, and depends on factors such as length of
connection and number of receivers.
Symmetrical Rate: The rate at which streaming data is
transmitted, in kilobytes (KB). This rate applies to transmitted
(uplink) and received (downlink) data.
Desired Symmetrical Rate: From the drop-down list, choose the
desired data rate for your Streaming connection. This can be
32 Kb, 64 Kb, 128 Kb or 256 Kb. This figure is guaranteed,
unless the connection cannot meet this requirement