3.4 Example 4: Add Video to a Voice Call from Office Communicator

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This example illustrates how a series of use cases can be used to add video to a voice call from Office Communicator.

Use Cases

  • Sign in, as described in section 2.5.5.

  • Initiate a call from a Client, as described in section 2.5.12.

  • Add video to a voice call, as described in section 2.5.13.

  • Terminate a voice call, as described in section 2.5.15.

  • Send a Quality of Experience report, as described in section 2.5.16.

Details

The following diagram illustrates how the actors (user and administrator) interact with the use cases that are used as building blocks for this example.

Process for adding video to a voice call from Office Communicator

Figure 26: Process for adding video to a voice call from Office Communicator

The following diagram illustrates the sequence in which the use cases are invoked in this example.

Sequence for adding video to a voice call from Office Communicator

Figure 27: Sequence for adding video to a voice call from Office Communicator