Virgin Mobile MIFI 2200 - Manual (Page 50)

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Port Filtering
Click Port Filtering in the Advanced menu to enhance the security of your system by controlling
which applications are allowed to access the Internet.
Port filtering allows you to conserve bandwidth by preventing non-business applications from
accessing the Internet. It can also be used to specifically allow certain applications such as games
and video conferencing software to use certain ports to access their online components.
The Port Filtering page allows you to enable port filtering, allow selected applications to access the
Internet, and set up custom applications for access to the Internet.