FEATURES GUIDE
General Features
156 Features Guide
Intercom Calling
Description
Allows the extension user to call another extension user within the system.
Conditions
• Extension numbers are assigned to all extensions by System Programming. An extension
number is programmed to be 2, 3, or 4 digits. The ISDN extension number is programmed
to be 1, 2 or 3 digits.
• Names can be given to extension numbers by System Programming. An extension number
and a name, if programmed, is shown on the digital proprietary telephone with display
during an intercom call.
• DSS buttons permit one-touch access to an extension and provide Busy Lamp Field.
• KX-T7431, KX-T7433, KX-T7436 and KX-T7235 users can make an extension call with
an extension dialling directory on the display.
• After dialling an extension number, the user will hear one of the following:
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 assigned.
Programming Guide References
• [003] Extension Number Set
• [004] Extension Name Set
• [005] Flexible CO Button/PF Key Assignment
• [012] ISDN Extension Number Set
• [013] ISDN Extension Name Set
• [100] Flexible Numbering
Features Guide References
• Button, Direct Station Selection (DSS)
User Manual References
• 2.2.1 Basic Calling
• 4.1.3 Customising the Buttons