When you start Communicator for the first time, your Contacts list is empty. Use the Search and Dial field to find people and add them to your Contacts list. Contacts can also be added manually by clicking the Add button. Client windows can also be set to be always using the Main window menu option. Note also, that depending on your service provider settings, the order of the left pane icons may vary. The left pane call settings icon and menus are visible depending on your service provider settings. The dial pad is also integrated with the Main window. 

Communicator windows open up in a cascaded fashion in the middle of the. The Search and Dial field allows searching for contacts as well as making calls using phone numbers or SIP URIs (native desktop only). SIP URIs must use the format user@domain or sip:user@domain. 

Figure 1 Main Window 

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