I have 2 tenant groups, one is Tenant 2 route 3 and the other is tenant 4 route 6. They are not able to call each other or transfer calls using only the phone extention but can call other phones not in a tenant group using only the extension. I need to know how to set up tenant to tenant access. I know I need to make a change in ld 93, but I am kind of a newb to all of this and any help would be appreciated.