3-74 Telephone FeaturesI 3.2 Telephone FeaturesConditions• After dialing an extension number, you will hear one of the following tones.Ringback tone: Indicates the destination extension is being called.Confirmation tone: Indicates you can perform voice calling (e.g., Paging).Busy tone: Indicates the destination extension is busy.Do Not Disturb (DND) tone: Indicates the destination extension has set the “DoNot Disturb (DND)” feature.• An extension number and a name, if programmed, are shown on a display PT during anintercom call.• You can assign a DSS button on a flexible button through Station Programming. Thestored number can be displayed by pressing the desired DSS button while on-hook.Programming References• Station Programming (Section 2)Flexible Button Assignment — Direct Station Selection (DSS) Button• System Programming — Installation Manual[009] Extension Number Assignment[604] Extension Name SettingPTPTIntercom CallingAllows you to make a call to another extension.Using the handsetAny Telephoneextension no.Lift the handset. Talk. Hang up.Enter the extension number(100 through 199).PTLift the handset or pressSP-PHONE/MONITOR.Talk. Hang up or pressSP-PHONE.Press the flexible buttonassigned as a DSS button.PTextension no.Press SP-PHONEor INTERCOM.Talk.Enter the extension number(100 through 199).Press SP-PHONE.INTERCOMorSP-PHONESP-PHONEUsing the SpeakerphoneUsing a DSS (Direct Station Selection) button
