Users can cancel the call if it did not take place for any reason.

To cancel the call, do the following:

1. Go to the Schedule section and select the call you need to cancel.
2. Click the Edit button on the call card.
3. Go to the Call State section and select the Canceled state.

4. Click the Save button to save changes.

As a result, the application changes the call's color in the Schedule. Users can't edit and delete calls in the Cancel mode.