3com SuperStack 3 NBX Manual De Usuario

Button Mappings allow you to place features, such as speed dial numbers 
and shortcuts, on telephone buttons for individual telephones or for 
telephone groups. In addition, you can use Button Mappings to map CO 
telephone lines to buttons and set up your system in one of these modes:

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Key Mode system — In Key Mode, all outside lines map to individual 
buttons on users’ telephones. You can share lines by assigning one 
line to multiple telephones. Incoming calls ring on all telephones that 
have that line assigned. Any of those telephones can answer the call.

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PBX (Private Branch eXchange) system — In a PBX system, outside 
lines are pooled and arbitrated by the Call Processor. To call an outside 
number, a user must dial the line pool access number, typically 9, and 
the Call Processor assigns the next available line.

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system — In hybrid mode, some lines are assigned as 

keyed lines, while the rest are pooled.

This section covers these topics:

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NBX Business Telephones include 18 Access buttons. These buttons have 
these characteristics:

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You must use two as System Access buttons.

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On NBX 2102 and 1102 Business Telephones, you can assign CO 
telephone lines or line pool access only to buttons that have lights. 

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You can assign one-touch actions such as Speed Dial or system 
features such as Do Not Disturb to any of the 18 buttons.

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If you do not assign a function to a button, the user can assign 
personal settings to it.