Button StepsISDN ServiceSelect ISDN Service from Type.Then enter the desired number in Dial (max. 32 digits consisting of 0–9, ,#, T [Transfer], [ ] [Secret], P [Pause], and F [Flash]).NoteAvailability of this button depends on the ISDN service of your telephonecompany.Refer to "1.2.5 Accessing the ISDN Service (ISDN Service Access)".Calling Line IdentificationRestriction (CLIR) Select CLIR from Type.Connected LineIdentification Restriction(COLR)Select COLR from Type.ISDN-Hold Select ISDN Hold from Type.Headset Select Headset from Type.Time Service SwitchingMode (Automatic/Manual)Select Time Service - Automatic/Manual from Type.Then in Parameter Selection, select the Time Table (tenant number) to beused when Time Service Switching Mode is set to Automatic.Network Direct StationSelection (NDSS)Select NDSS from Type.Then enter the another PBX extension number in Dial (max. 16 digitsconsisting of 0–9).NoteThe button may not be available depending on the networking method inuse or the settings of the PBX.CTI Select CTI from Type.Primary Directory Number(PDN) Select PDN from Type.Secondary DirectoryNumber (SDN)Select SDN from Type.Then enter the extension number in Extension Number.In Parameter Selection, specify the delayed ringing setting for calls arrivingat an SDN button.To specify the ring tone, select the ring tone type from Optional Parameter(Ringing Tone Type Number).Check-in Select Check In from Type.Check-out Select Check Out from Type.Cleaned-up Select Cleaned Up from Type.Two-way RecordSelect Two-way Record from Type.Then enter the UM group’s floating extension number in ExtensionNumber. (The UM group’s default floating extension number is 500.*1)346 User Manual3.2.1 User Programming