3-10 FeaturesC 3 FeaturesConference (3-party)During a 2-party conversation, an extension user can add a third party to make a 3-partyconference. The maximum number of members of a conference can be programmed inprogram [116].When a proprietary telephone user is in a 3-party conference with 2 external parties, the usercan leave the conference to allow the other 2 parties to continue the conversation. This iscalled an Unattended Conference. The user may return to the conference, if desired.• The possible combinations, through System Programming, are 3 extensions, 1 extensionand 2 external parties, or 2 extensions and 1 external party.• When a 2-party call is changed to a 3-party call or vice versa, a confirmation tone is sentto all 3 parties. The tone can be disabled by program [105].• A 3-party call can also be established by the Executive Busy Override feature.• The duration of an Unattended Conference can be limited in program [205]. The call isdisconnected when the assigned time limit expires unless the extension which leaves theconference returns to it.• An Unattended Conference can be established when the extension is allowed to transfer acall to an outside (CO) line by program [606].• Required System Programming[105] Conference Tone[116] Conference Pattern Selection[205] Outside-to-Outside (CO-to-CO) Line DurationTime Limit[606] Call Transfer to an Outside (CO) Line• Related Feature ReferencesLimited Call Duration, Executive Busy Override• Operating Instructions References1.2 Proprietary Telephone Settings, “Customizing theButtons on Your Telephone”,CONF (Conference) Button1.7 Useful Features, “Conference (3-party)”1.7 Useful Features, “Conference, Unattended”+!!
