The BlackBerry® Attachment Service converts supported message attachments into a format that users can view on their BlackBerry devices. The BlackBerry Attachment Service processes attachments and converts them into a binary format that retains most of the layout, appearance, and navigation of the original attachments. You do not have to install the applications that are associated with the attachment formats on BlackBerry devices. The attachment viewer installs automatically with the BlackBerry® Device Software.
The BlackBerry Attachment Service receives attachments that are embedded in messages from the messaging server, through the BlackBerry Messaging Agent. The BlackBerry Attachment Service also receives attachments that are accessed through links in the BlackBerry® Browser.
The BlackBerry Attachment Service enables users to play supported audio attachments on supported BlackBerry devices that are running BlackBerry Device Software version 4.2 or later. The BlackBerry Attachment Service can convert .wav files into an audio format that a BlackBerry device series supports (for example, .mp3 files on BlackBerry® 8700 Series devices).
If the BlackBerry Attachment Service is hosted on a computer that uses Windows Server® 2008, the BlackBerry Attachment Service does not support .mp3 audio files on BlackBerry devices, and the BlackBerry Attachment Service does not support any audio file formats on BlackBerry® 7100 Series devices that support CDMA networks. You must host the BlackBerry Attachment Service on a computer that uses Windows Server 2003 if you want the BlackBerry Attachment Service to support .mp3 audio files on BlackBerry devices and all audio formats on BlackBerry 7100 Series devices that support CDMA networks.