General Features170 Features GuideInter Office CallingDescriptionAllows the extension user to call another extension user within the system or a tenant. An interoffice call is a call between two extensions in the KX-TD500 system.Conditions• Definition of busy extension status– Off-hook– ICM button is not idle.– When at least one DN is in use.– Off-hook– an SLT is ringing.– an SLT has a call placed on hold.• Extension Number AssignmentExtension numbers (3 or 4 digits) are assigned to all extensions according to "NumberingPlan" by System Programming.• DSS ButtonDSS buttons permit One-Touch access to an extension and provide Busy Lamp Field. ADSS button can be assigned on a Proprietary Telephone (PT) or DSS Console by Station,User or System Programming.• Call Directory - Extension DialingThe extension user with one of the following PTs can make an extension call with "CallDirectory - Extension Dialing" on the display of the following PTs:KX-T7235, KX-T7431,KX-T7433, KX-T7436.• Call Progress ToneAfter dialing an extension number, the extension user may hear one of the following callprogress tones:– Ringback tone: indicates that the other extension is being called.– Confirmation tone: indicates that the user can perform Voice Calling.– Busy tone: indicates that the other extension is busy.– Do Not Disturb tone: indicates that the other extension has DND enabled.• Tenant ServiceIf "Tenant Service" is employed, calling to other extensions in other tenants is enabled /disabled by System Programming.• Names can be given to all extensions by User or System Programming. An extensionnumber and a name, if programmed, are shown on the display PT during an intercom call.
