Sorry, by definition DND means DO NOT DISTURB, and it blocks any call or page from disturbing you...there's really no way to tell it that a specific page is an exception (though you can allow certain phones to over-ride DND for calls only). The only solution, I think, is traditional overhead paging, which now could be either traditional wiring or VOIP. 250, of course, can do both overhead and keyset paging in the same group.