Unless otherwise advised by the superintendent, a foreign banking corporation not otherwise maintaining a licensed branch or agency in this State may, with 45 days prior written notice to the superintendent, establish a place of business of the foreign banking corporation in this State at which location the foreign banking corporation engages solely in limited administrative functions (such as back office support systems) in connection with its banking activities that do not involve contact or liaison with customers or potential customers. Unless otherwise advised by the superintendent, if a foreign banking corporation already maintains a licensed branch or agency in this State it may establish an office that engages solely in limited administrative functions in connection with its banking activities that do not involve contact or liaison with customers or potential customers (such as back office support systems), by notifying the superintendent within 45 days of establishing such office.