Summary

The icon used to call a sub master stations or monitor a door station is grayed out and cannot be touch activated. This is due to the JP-4MED having restricted access to door stations and sub master stations.

Solution

The JP-4MED must be initialized to the system reset factory defaults.  To initialize the JP-4MED follow the steps below:

1. If the screen is off, press the [HOME] button, or touch the screen to turn it on.
2. Press and hold the [HOME] button, then touch SETTINGS → INSTALL.
   
   If the [HOME] button is released before this step has
   been performed, the display returns to HOME window.
3. Touch ENTER to continue to the settings.
4. Touch INITIALIZE.