Planet BM-525 User Manual page 96

IM Blocking:
Prevent users to login MSN Messenger, Yahoo Messenger, ICQ, QQ, and Skype
Audio and Video Types:
Prevent users to transfer sounds and video file by http
Sub-name file Blocking:
Prevent users to deliver specific sub-name file by http
All Type:
Prevent users to send the Audio, Video types, and sub-name file...etc. by http protocol.
BM-525 Bandwidth Management Gateway User's Manual
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