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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 JSON, a lightweight data-interchange 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 Live Communications Server over an MTLS connection.
6. The Microsoft Office Live Communications Server accepts the request, processes the login information, and sends the
acceptance to the Microsoft Office Communicator Web Access server.
7. The Microsoft Office Communicator Web Access server sends the acceptance to the BlackBerry Collaboration Service.
8. The BlackBerry Collaboration Service sends the acceptance message, in encrypted and compressed format, through
the
BlackBerry Dispatcher to the device, and creates a cache of the connectivity information to maintain the instant
messaging session.
The BlackBerry Collaboration Service receives events that the server initiates from the Microsoft Office Communicator Web
Access
server using an HTTP GET or HTTPS GET request, and sends the events to the collaboration client over the session.
The BlackBerry Collaboration Service sends events that the BlackBerry device initiates to the Microsoft Office
Communicator Web Access server using an HTTP POST or HTTPS POST request.
Process flow: Starting an instant messaging session
using the BlackBerry Client for use with Microsoft
Office Communications Server 2007
Feature and Technical Overview BlackBerry Enterprise Server process flows
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