Basic Call Features871. Press the OK soft key, the phone returns to the idle screen and call completion is activated.When the called party becomes idle, the following prompt appears on the LCD screen of thephone:1. Press the OK soft key to redial the number.NoteReCallYou can press a recall key to place a call back to the last incoming call.To configure a recall key via phone user interface:1. Press Menu->Features->DSS Keys.2. Select the desired DSS key.3. Press or , or the Switch soft key to select Key Event from the Type field.4. Press or , or the Switch soft key to select ReCall from the Key Type field.5. (Optional.) Enter the string that will appear on the LCD screen in the Label field.6. Press the Save soft key to accept the change or the Back soft key to cancel.Recall key is configurable via web user interface at the path Dsskey->Line Key.Call MuteYou can mute the microphone of the active audio device during an active call so that the otherparty cannot hear you. You can also mute the microphone while dialing so that the other partycannot hear you when the call is set up. It helps prevent the other party from hearing theinformal discussion when auto answer is enabled on his/her phone.Normally, the mute state ends when the active call ends. Keep mute feature enables you tomake the mute state of the phone persist across calls and to mute the phone’s microphone onany screen (e.g., idle screen). It helps prevent the other party from hearing the noise comingfrom your room when auto answer is enabled on your phone.Call completion is not available on all servers. For more information, contact your systemadministrator.