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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 initates 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 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 R2 or Microsoft
Lync Server 2010
1. A BlackBerry device 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 was reached, and performs one of the following actions:
Feature and Technical Overview BlackBerry Enterprise Server process flows
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