288 S-ICX (International) issued October 2000 S-ICX-50-700Chapter 7. SLT Features Section 700 - OperationConsiderations• If all the internal parties hang up, the conference call will be disconnected. If the internal partyremains in the conversation, the conference call remains in progress.• When three parties are conferenced, a built-in 3-party conference circuit is used. If no 3-partyconference circuit is available, a conference cannot be established.Do-Not-Disturb (DND)DescriptionYou can make an extension unavailable by activating the Do-Not-Disturb (DND) feature. When DNDis activated, calls to that extension receive busy tone.You can set or cancel DND from either your extension or from an alternate extension.OperationTo set DND for your own extension:To cancel DND for your own extension:To set DND for another extension:Action Result1. Lift the handset. Intercom dial tone2. Enter the DND Set code (default = 720 [UK/HK] or 720#[Taiwan, Malaysia, Indonesia]).3. Replace the handset.Action Result1. Lift the handset. Intercom dial tone2. Enter the DND Cancel code (default = 720 [UK/HK] or720# [Taiwan, Malaysia, Indonesia]).DND/CD LED light goes off3. Replace the handset.Action Result1. Lift the handset. Intercom dial tone2. Enter the DND Set by Other Phone code (default = 740[UK/HK] or 740# [Taiwan, Malaysia, Indonesia]).3. Dial the extension number.4. Replace the handset.
