General Features
170 Features Guide
Inter Office Calling
Description
Allows the extension user to call another extension user within the system or a tenant. An inter
office call is a call between two extensions in the KX-TD500 system.
Conditions
• Definition of busy extension status
<ICM type PT>
– Off-hook
– ICM button is not idle.
<DN type PT>
– When at least one DN is in use.
<SLT>
– Off-hook
– an SLT is ringing.
– an SLT has a call placed on hold.
• Extension Number Assignment
Extension numbers (3 or 4 digits) are assigned to all extensions according to "Numbering
Plan" by System Programming.
• DSS Button
DSS buttons permit One-Touch access to an extension and provide Busy Lamp Field. A
DSS button can be assigned on a Proprietary Telephone (PT) or DSS Console by Station,
User or System Programming.
• Call Directory - Extension Dialing
The extension user with one of the following PTs can make an extension call with "Call
Directory - Extension Dialing" on the display of the following PTs:KX-T7235, KX-T7431,
KX-T7433, KX-T7436.
• Call Progress Tone
After dialing an extension number, the extension user may hear one of the following call
progress 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 Service
If "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 extension
number and a name, if programmed, are shown on the display PT during an intercom call.
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