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QUICK REFERENCE GUIDE MITEL 6863 SIP PHONE FOR MIVOICE OFFICE 400 MESSAGE WAITING INDICATOR NAVIGATION SYSTEM MENU SELECT PROGRAMMABLE KEYS REDIAL OPTIONS TRANSFER GOODBYE LINE/ CALL APPEARANCE HOLD VOLUME MUTE SPEAKER/HEADSET Place a Call 1. Lift the handset, press the Line key or press key.
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• Press the key again to unmute the audio. To make a conference call on Mitel 6863 SIP phone, conference function must be saved to a configurable key using Self Service Portal or contact your system administrator to Hold/Resume a Call configure the conference function.