When using Button Builder on Polycom phones it will add Spontaneous Call Appearance which you may not like as this shows each extension that is receiving a call for extensions that are on their BLF.  An example of this is shown below.To disable this you can place the following overrides:attendant.behaviors.display.spontaneousCallAppearances.automata="0"
attendant.behaviors.display.spontaneousCallAppearances.normal="0"You can place these on the domain level or one by one on each phone within NDP.   Note: If you are copying and pasting these overrides into NDP, please be sure to correct the quotes on "0".  As copying and pasting from this ticket will change the quotes from "normal" to "Curly"  if they are curly quotes then NDP won't recognize it and the change will not work.  I suggest just retyping "0" your self within NDP.