The Ping Reply setting determines whether or not the handset responds to a ping. You can effectively 'hide' a handset by disabling its Ping Reply setting. Use the following procedure to enable or disable Ping Reply on a handset.
The handset display shows the Ping Reply setting. The default setting is Ping On (enabled).
After selecting the Ping Reply setting, the handset display shows a confirmation message for three seconds.
The handset emits a confirmation tone before returning to the menu list.