UP409ZH
During Global Setup and System Reset, make sure your cordless phone is in standby mode (not in use), and all handsets are within range of the main base unit.
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ABOUT THE MENU OPTIONS
There are 5 main menu options, (DirectLink Mode, Room Monitor, Handset Setup, Global Setup and System Reset) and submenu options.
Summary of the Main Menu and Submenu
Two Way Communication between the Handsets Anywhere without the Base (DirectLink)
DirectLink Mode allows a pair of handsets to work without the base unit, for direct
Room Monitor
This feature only works if you have two or more handsets, allowing you to monitor sounds in another room (see page 14 for setup). One handset is placed in the desired room to monitor (acts as remote mic), and the other is placed near listener (remote speaker). This is useful for monitoring child activities.