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1. A user logs in to a collaboration client on a BlackBerry device.
2. The device compresses and encrypts the user ID and password, and sends them through the BlackBerry Router to the
BlackBerry Dispatcher over port 3101.
3. The BlackBerry Dispatcher sends the request to the BlackBerry Collaboration Service over port 3200. If the BlackBerry
Collaboration Service is located on a remote computer, the request remains encrypted using a Research In Motion
proprietary protocol.
4. The BlackBerry Collaboration Service checks the BlackBerry Configuration Database to find out if the maximum
number of sessions has been reached, and performs one of the following actions:
• If the maximum number of sessions has been reached and a timeout limit is set, the BlackBerry Collaboration
Service
logs out any instant messaging sessions on devices that are out of coverage, and any instant messaging
sessions that are no longer sending status messages to the BlackBerry Collaboration Service.
• If no idle sessions exist, the BlackBerry Collaboration Service sends a Server Busy status message to the device and
rejects the login request.
• If the maximum number of sessions is not set and the number of sessions equals the total number that the HTTP
persistent connection supports, the BlackBerry Collaboration Service sends a Failed status message to the device
and rejects the login request.
The BlackBerry Collaboration Service checks the BlackBerry Configuration Database to verify that the user has
permission to use the collaboration client, and tries to authenticate the user using Integrated
Windows Authentication.
If the authentication is not successful, the BlackBerry Collaboration Service tries a forms-based login process instead.
The BlackBerry Collaboration Service sends a login request in XML format to the Microsoft Office Communicator Web
Access server.
The BlackBerry Collaboration Service opens the connection using HTTPS over port 443. You can also configure the
connection to use HTTP, the transport protocol that the AJAX service uses, or a custom port number.
5. The Microsoft Office Communicator Web Access server formats the request using a Microsoft API and sends the
request to the
Microsoft Office Communications Server 2007 over an MTLS connection.
6. The Microsoft Office Communications Server 2007 accepts the request, processes the login information, and sends the
acceptance to the Microsoft Office Communicator Web Access server.
Feature and Technical Overview BlackBerry Enterprise Server process flows
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