You can use BlackBerry Messenger to communicate with users who have a BlackBerry device. The contact list screen in BBM is made up of your BlackBerry Messenger contacts, contact categories, chats, and groups.
You can send messages to your contacts, change your status and display picture, and organize contacts into contact categories. During a chat, you can send files such as voice notes and contact attachments. If your device has a camera, you can send pictures that you take with the camera.
You can use the BlackBerry Groups feature of BlackBerry Messenger to create a group of family members, friends, co-workers, and so on. In a group, you can share pictures, lists, and appointments with the members of the group. You can also chat with members of your group and comment on shared items.
You do not need to sign in to or out of BBM. As long as you are connected to a wireless network, BBM can keep you connected to your BlackBerry Messenger contacts. You might be able to back up and restore your BlackBerry Messenger contacts, profile, and group membership using BlackBerry Messenger or using BlackBerry Desktop Manager on a computer.
You must have a wireless service data plan to use BlackBerry Messenger. Depending on your wireless service provider or organization, some features might not be supported.
A new version of BlackBerry Messenger (version 188.8.131.52) is available and we particularly encourage anyone who downloaded or upgraded BlackBerry Messenger since December 14th to upgrade to this latest version which resolves an issue that exists in the two previous versions (184.108.40.206 and 220.127.116.11).
To download the BlackBerry Messenger from your BlackBerry smartphone please go to www.blackberry.com/messenger on your BlackBerry smartphone browser.