3-72 Features
I 3 Features
Intercom Calling
Description Allows an extension user to call another extension user within the
system.
Conditions • Extension numbers are assigned to all extensions by system
programming.
• Names can be given to extension numbers by system programming. An
extension number and a name, if programmed, will be shown on the
display PT during an intercom call.
• DSS buttons assigned to flexible buttons permit one-touch access to an
extension and provide the Busy Lamp Field. The MESSAGE button has
no LED (Light Emitting Diode) indicator.
• After dialing an extension number, the user will hear one of the
following.
Ringback tone: indicates the other extension is being called.
Busy tone: indicates the other extension is busy.
Do Not Disturb tone: indicates the other extension has assigned
DND.
• A proprietary telephone user can select one of the Intercom Alert modes,
Voice Call or Tone Call. Voice Call informs the called party of an
incoming call with the calling party’s voice, while Tone Call uses a ring
tone. The calling party can only switch the pre-set mode at the called
extension, from Voice Call to Tone Call.
Programming References
Section 4, System Programming
[009] Extension Number Assignment
[604] Extension Name Setting
Station Programming . . . . . . . . . User Manual
Flexible Button Assignment – Direct Station Selection (DSS) Button
Intercom Alert Assignment
Feature References Section 3, Features
Busy Lamp Field
Button, Direct Station Selection (DSS)
Operation References Telephone Features
—User Manual Intercom Calling
Switching to Tone Alert
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