It shouldn't need to be remaped, but if someone accidentally pressed the page 2 or page 3 button, it won't work properly. Page one could be set to x100-x149, page 2 to x150 to x199, and page 3 to x200-x249 as an example. If they have nobody in extension range 150-199 and the dss is set to page 2, it will appear to not be working. If you change it back to page 1 (and users are in the x100-x149 in this example) then the buttons will light back up in accordance to the extensions.