Managing instant messaging features
Prevent users from sending specific file types to instant
messaging contacts using the BlackBerry Client for
IBM Lotus Sametime
On BlackBerry devices that are running BlackBerry Device Software version 4.2 or later and the latest version of the
BlackBerry Client for IBM Lotus Sametime, users can send files to their instant messaging contacts. To help manage
network resources in your organization's environment, you can specify the types of files that users cannot send from their
BlackBerry devices.
In the IT policy for a group or a specific user account, in the Instant Messaging policy group, in the Disallow File Transfer
Types IT policy rule, perform one of the following actions:
• To prevent users from sending specific file types, type the file extensions and separate them using commas. For
example, type bat, exe, mp3 to prevent users from sending batch, executable, and mp3 files.
• To prevent users from sending all file types, type an asterisk (*).
Related information
Change the value for an IT policy rule, 46
Specifying the maximum size of file types that users
can send using the BlackBerry Client for IBM Lotus
Sametime
To control the use of network resources in your organization's environment, you can use the media content management
feature to specify the maximum size of specific file types that BlackBerry device users can send to each other using the
BlackBerry Client for IBM Lotus Sametime. The maximum file size that you specify for a file type must not exceed the
maximum file size that you specified on the IBM Lotus Sametime server.
Related information
Configure download limits for media content types, 312
Administration Guide Managing instant messaging
388