If I have a (twin) brother (Score: 0) by Anonymous Coward on 2014-09-12 14:09 (#2SAX) will the system be able to distinguish between his voice and mine? I have a hard time distinguishing between my sisters' voices on the phone, and my voice printing system has several orders of magnitude more R&D than this project (so far).Will "I had a cold and couldn't authenticate" become a popular excuse for missing deadlines with the ATO?