not a feature package, either scr keys or mcr keys, an scr on three different phones rings on all three phone, if one is busy, they are all dark on that line.. the next caller get a busy or hunt treatment.. on a mcr key, programed on three phones, one phone answers the other two are still avaible for calls. the caller never get hunt treatment until all three lines are busy
john poole
bellsouth business
columbia,sc