...
To filter call tasks, use the filtration buttons located in the upper right corner of the page.
When you click a filtration button, only call tasks that belong to the selected filtration category are displayed.
...
To view details about a call task, click the 
button for the necessary call task.
A page with detailed information about the selected call task will open.
...
To edit a call task, click the 
button for the desired record on the list.
As a result, the following dialog window will open as displayed in the image below.
...
1. On the Call tasks page, click 
for a task you want to delete.
2. In the dialog box, click OK to confirm the action
The selected call task will be deleted.
...