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Chapter 4: Using the web interface
124 Managing LAN network users
Definitions for network terms
APN (Access Point Name)
The APN is used by the network user to establish the connection to the
required destination network. This means that the terminal must know the
APN in order to be able to connect to the destination network.
APNs are provided from the Airtime Provider. They may also be defined on the
SIM card.
Header compression
The Header of a data packet contains control information belonging to that
packet. The information in the Header can take up a considerable amount of
bandwidth. In order to save bandwidth, you can use Header Compression,
meaning you compress the header information, leaving some of the
information out.
You can select whether or not to use Header Compression for your data
transmission.
• Header Compression enabled: Recommended for low-noise applications.
If you select Header Compression enabled, you will be using less
bandwidth on header information, leaving more bandwidth for the actual
payload.
However, if the environment is noisy, the system will have to retransmit
information, and you may end up using more bandwidth than without
Header Compression.
• Header Compression disabled: Recommended in noisy environments.
If Header Compression is disabled, the system will be less sensitive to
noise.
BGAN-X_UM.book Page 124 Wednesday, April 30, 2008 12:48 PM