You can use the BlackBerry® Client for IBM® Lotus® Sametime® to chat with other IBM® Lotus® Sametime® users using your BlackBerry device. To use the client, you must have an IBM Lotus Sametime user name. If you do not have a user name, contact your administrator.
You can send and receive email messages and use other applications on your device while the client is running. When you receive a new instant message, an indicator appears at the top of the Home screen.