baker ' s voice will replace the earlier computer - synthesized voice that was never used . bt said that his voice was chosen as it was instantly distinguishable . it took him 11 days to produce 11 , 593 phrases and sounds which couldn then be broken down and reassembled by a computer to provide the terms . it then did five hours to recover these songs to develop a solutions service . bt have announced that there will be no limitations as to what bob herbert ' s vocals can ' speak ' , even rude words . " what appealed to me most is the thought that i will be coming wonderful morning to people because it is a cheeky telegram , a surprise greeting , or just a quick wow , " said baker .
Tom Baker works for BT.