108 Browser user interfaceRequests for questions (*85 DTMF command) appear as blinking questionmarks beside the participant’s name in the Participant List. The chairpersoncan un-mute the participant by pressing the un-mute button or the blinkingquestion mark. The chosen participant receives the voice prompt "Pleaseask you question after the tone".The chairperson can sort the participant list by question mark by pressingthe "?" on the top left of the table. This sorts the list of participants byplacing the participants waiting to ask questions first.Chairperson Volume ControlThe chairperson can change the hearing and listening volume for thechairperson by selecting the Volume Control button. See Figure 48"Chairperson Volume Control Panel" (page 108) for a depiction.Figure 48Chairperson Volume Control PanelThe two scales in the middle of this window show the currentincrease/decrease level for hear and talk directions. The middle of the scaleis zero, which signifies no volume change. Click on one of the arrowsto increase or decrease the volume. The colored rectangle in the scaleadvances one step for each arrow click.Click on the Reset Volume of all participants button to restore the initialvolume level of all participants. The initial volume level is determined by theAdministrator’s default conference settings.When no chairperson is present in the conference, the system disablescall-related buttons (see Figure 49 "Meeting Control window - Chairpersonnot present" (page 109)).Nortel Communication Server 1000/Communication Server 2100 Solution/Meridian SL-100Nortel Integrated Conference Bridge: Service Implementation FundamentalsNN43001-558/555-4001-135 01.02 StandardICB Release 4 20 June 2007Copyright © 2007, Nortel Networks.