To exchange your settings with another extensionOff-hook. Enter 727.PT/SLTyourextension no.On-hook.Dial yourextension number.extension PINEnter extension PIN(max. 10 digits).2 77D.TonePIN: Personal Identification Number• An extension personal identification number (PIN) is required to use this feature. Refer to"1.3.27 Extension PIN (Personal Identification Number)".• Your previous extension will receive the old settings of your new extension.• Extension settings can be exchanged between SLT and SLT, PT and PT, or SLT and PT.• If you are using a KX-NT300 series (except KX-NT321)/KX-NT560/KX-DT343/KX-DT346telephone with a Bluetooth wireless headset, and exchange the settings with anotherKX-NT300 series (except KX-NT321)/KX-NT560/KX-DT343/KX-DT346 telephone user, youcannot use your Bluetooth wireless headset at the other extension.Bluetooth wireless headsets are registered on extensions themselves. Therefore, you haveto register a Bluetooth wireless headset on each desired extension. For details aboutregistration, refer to "Bluetooth Registration" in "3.1.2 Personal Programming".1.3.75 Walking Extension, EnhancedIn addition to exchanging the settings between extensions (Walking Extension), you can change the status ofyour extension to "Service-in" or "Service-out" (Enhanced Walking Extension).Service-in: An extension is in use (normal status).Service-out: Extension Dial Lock (® 1.3.25 Extension Dial Lock) and Do Not Disturb (DND) (® 1.3.20 DND(Do Not Disturb)) are activated on an extension, and the extension user cannot make unauthorized outsidecalls nor receive calls.This feature is useful when:a. one person uses the same extension settings at different locations, such as another branch office or athomeb. two or more people use the same telephone in turnDocument Version 2013-04 Operating Manual 1531.3.75 Walking Extension, Enhanced