Using the Attendant Conference feature, an attendant can set up a conference call for as many as six parties, including the attendant. However, if the 12–party Conferences field is enabled in the Feature-Related System Parameters screen, 12 parties can participate in a conference call. In an active call involving a desk attendant or an Avaya one-X® Attendant, only the attendant can initiate a conference call or transfer the call to another party. Communication Manager blocks other parties from initiating a conference call or transferring the call.