Panasonic KX-TD500 - Flexible PF Key Assignment for PT

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202 Programming Guide
4.3.3 Flexible PF Key Assignment for PT
Used to determine the usage of flexible PF buttons on PTs.
The following screen is displayed by clicking on "4-2 Extension Line" screen.
<Key Type Assignment>
The following Key Type Assignment screen is displayed by clicking "Key Type Display"
button (including "Not Stored") for each PF Key on the above screen.