Hooking Up

AT&T has 90% of my business because AT&T offers better rates than MCI (ECONOMY & BUSINESS, Aug. 25). I know, because with two phones, I have one on each. If MCI and US Sprint want my long-distance dollars, they must offer price and service. So far, AT&T has the edge in both.

Tom Pittman

Manhattan, Kans.

The assertion that MCI has been overcharging customers for uncompleted calls simply is not true. We do not begin to bill for a call after a certain number of seconds or a certain number of rings. We begin to bill when the call is answered and have very sophisticated means for determining when that occurs.

Howard Crane

MCI Communications

Washington

TIME regrets the error.