
Although SFLphone is enterprise oriented, its interface is very easy to use and you can use the basic features without any particular skills or knowings.
The main window is composed of four main parts: the current call list, the history list, the bookmark list and the contact list. By default, they are stacked, but it is possible to separate them by using the drag and drop handle on top of each "tab" of the application. Note that this handle is disabled in the current call list.
To switch between those windows, click on the History, Bookmark and Address Book tabs on the bottom of the screen. Each tab page can be docked on the left or right of the call page and tabbed in various configurations.

The default call list
The current call list is composed on the list itself, hosting call and conferences. There is also an optional dial pad, instant message box and volume controls. They can be enabled or disabled from the menu.

The view menu
The history list host the previous calls. It is possible to sort it in multiple ways. By default, it ordered from the most recent to the most ancient call with "smart" categories. A filter text box is available for quick searches.

The History tab
By default, each call display if the call is incoming, outgoing or missed as emblems in the bottom right of the widget. It also display the peer name using the contact information or the name provided by the phone server. If a call has a recording, the play and remove buttons will be displayed.
The contact list provide an easy access to KDE address book contacts. By default, it is sorted by alphabetical order, but can also be displayed in various other orders. A quick search text field is also provided. Contacts with multiple phone numbers are collapsed by default. To display all numbers it is possible to double click on the collapsed item in the list or activate the option in the Display page of the configuration dialog. The information being displayed are also configurable from that same page. Users with many contacts might want to display minimal details to reduce the size of the contacts.

The Contact tab