Using the Aastra 673xi / 675xi10Using the Aastra 673xi / 675xiTelephoningMaking Calls1. In order to establish a connection,– pick up the handset or– press the Handsfree key , to make the following call in the handsfreemode (see Handsfree / Open-Listening Mode starting on page 16).2. Dial a call number:– Enter the call number using the number keys.– Or: press the Redial key to call back a previously dialled call number.Then select an entry with the navigation keys . Confirm with the Dialsoftkey or pick up the handset.– Or: Press the function key with the phone book function (please refer toPhone Book starting on page 21). This function is for selecting a call numberfrom the phone book of the OpenCom 1000 communications system.3. Wait for the connection to be set. After about five seconds, the Aastra 673xi /675xi accepts the entire call number and dials. To speed up dialling, press thehash key after entering the call number.Calling with Selective Line SeizureIf multiple trunk keys are configured for your telephone, you can seize a line selec-tively1. Press a trunk key / / to seize a specific line.Optional: Use the left arrow key or right arrow key to select a line.In the display the line numbers (L1, L2...) are shown and indicate whether thisline is free and can thus be seized.2. Dial a call number (see page 10).