It was later renamed the Audio Distribution System ( ADS ) .
The first voice - messaging application , the Speech Filing System , was developed at the IBM Thomas J. Watson Research Center in 1973 under the leadership of Stephen Boies .
voice - messaging application was later renamed the Audio Distribution System ( ADS ) .
The first voice - messaging application , the Speech Filing System , was developed at the IBM Thomas J. Watson Research Center in 1973 under the leadership of Stephen Boies .