FeaturesIntercom CallingDescription Allows the extension user to call another extension user within thesystem.Conditions l Extension numbers are assigned to all extensions by SystemProgramming. An extension number is programmed to be two, three, orfour digits.l Names can be given to extension numbers by System Programming.An extension number and a name, if programmed, is shown on thedisplay PT during an intercom call.l DSS buttons permit one-touch access to an extension and provide BusyLamp Field.l RX-T7235 user can make an extension call with an extension dialingdirectory on the display.. After dialing an extension number, the user will hear one of thefollowing:Ringback tone: indicates the other extension is being called.Confirmation tone: indicates the user can perform VoiceCalling.Busy tone: indicates the other extension is busy.Do Not Disturb tone: indicates the other extension has DNDassigned.Programming ReferencesSection 4, System Programming[003] Extension Number Set[004] Extension Name Set[005] Flexible CO Button Assignment[ 1001 Flexible Numbering, 1st through 16th hundred extension blocksStation Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . User ManualFlexible CO Button Assignment - DSS ButtonFeature References Section 3, FeaturesBusy Lamp Field Button, Direct Station Selection(DWOperation References DPT Features, Standard Telephone Features-User Manual Intercom CallingFeatures 3-89
