(FORTUNE Magazine) – Advice to innkeepers: Don't provide business travelers with too many befuddling, high-tech gizmos. So says the Swissotel Advisory Council, a group of corporate travel managers representing such companies as Bank of Boston and Ernst & Young. Not wanted in hotel rooms: two-line telephones and complicated digital remote controls for TVs. Says the survey: ''TVs should not be a test of human intelligence.'' Also vetoed were separate hotel floors for women. Shirley Schlessinger, a group member who runs her own firm in Chicago, asks, ''Do hotels expect women to want to roam in their bathrobes like kids in a college dorm?'' Things traveling executives do like: minibars (a must), irons, telephones in the bathrooms, hair dryers, and VCRs (the simpler the better).D.J.M.