Microsoft Voice Command is an application which can control Windows Mobile devices by voice. The first version was announced in November 2003Microsoft Presspass:Microsoft Gives Mobile Devices a New Voice and it was supported in the United Kingdom, United States, France, and Germany.
Windows Mobile 6.5 had Microsoft TellMe integration, software created by a company Microsoft had recently acquired. This feature was later implemented in Windows Phone as a part of Bing Mobile.
See also Speech recognition Speech synthesis Voice control Microsoft Cortana
References
External links
How To Use Speech Recognition in Windows XP Microsoft speech page