The default mode that the system adopts depends on the type of System SD card fitted to the system. Systems with a PARTNER, Norstar or IP Office U-Law card default to key system mode. Systems with an IP Office A-Law card default to PBX system mode.
Key Mode vs PBX Mode - Quick Summary
Key Mode
PBX Mode
•
The first 2 programmable buttons are used as intercom buttons.
•
Internal calls are made and answered using the intercom buttons.
•
External calls are made and answered using line appearance buttons.
•
The line used for outgoing external calls is determined by the line button pressed.
•
Automatic line selection defaults to the analog lines present and then the 2 intercom buttons.
•
The first 3 programmable buttons (2 on ETR phones) are used as call appearance buttons.
•
Internal calls are made and answered using the call appearance buttons.
•
External calls are made and answered using the call appearance buttons.
•
The line used for outgoing external calls is determined from the number dialed.
•
Automatic line selection defaults to the 3 call appearance buttons (2 on ETR phones).
•
! WARNING
Changing the system mode will also default most settings, including all button programming.
•
! WARNING
This process will restart the phone system and disconnect all currently connected calls.
1408/1416/9404/9408/9504/9508 Phone
1.
At either of the system administration telephones (the first two extensions on the system), with the phone idle press Admin.
2.
Use the up or down arrow buttons to scroll the display to Admin2. When shown, press Select.
3.
Use the up or down arrow buttons to scroll the display to System Mode. When shown, press Select.
4.
Use the left or right arrow icons to toggle the setting between Key or PBX.
5.
Click Save.
6.
The menu will prompt Immediate Reboot ? Select either Confirm or Cancel.
•
Exit programming by pressing PHONE/EXIT. Alternatively use the Back button to move to another menu.
M7324/M7324N/M7310/M7310N/T7316/T7316E Phone
This process cannot be done using this type of phone.
ETR 18D/ETR 34D Phone
This process cannot be done using this type of phone.
Performance figures, data and operation quoted in this document are typical and must be specifically confirmed in writing
by Avaya before they become applicable to any particular order or contract. The company reserves the right to
make alterations or amendments at its own discretion. The publication of information in this document does not
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up or down 
arrow buttons to scroll the display to Admin2. When shown, press Select.
left or right 
arrow icons to toggle the setting between Key or PBX.