3-48 Telephone FeaturesC 3.2 Telephone FeaturesConditions• System Programming is required to execute this feature.• When an Unattended Conference is established, an alarm tone is sent to both outsideparties fifteen seconds before the assigned time limit (default: 10 minutes). “HoldRecall” is activated at the extension that leaves the conference fifty seconds before thetime out. The call is disconnected when the time out expires unless the extensionreturns to the conference.• For example, if you are on-hook and hear “Hold Recall” during the UnattendedConference mode, the display will show “CO 2 & CO 3” for fifty seconds before thetime out.Programming References• System Programming — Installation Manual[205] Outside-to-Outside (CO-to-CO) Line Duration Time Limit[606] Call Transfer to an Outside (CO) LineFeature ReferencesConferenceHold Alarm/Hold Recall (→ See the Installation Manual.)PTPTConference, UnattendedWhen you are in a conference with two outside parties, you can leave the conference callallowing the other two parties to continue their conversation.To establish an Unattended ConferencePTPress CONF to leave the conference.CONFDuring a conversation with two outside partiesPTPress the CO flashing green moderately.CO• An outside-to-outside (CO-to-CO) line call between the other two parties is established.To return to the conference
