Apr., Microsoft On April 2, 2003 at the Spring 2003 Voice on the Net (VON) Trade Show & Expo, Microsoft Corp. announced a comprehensive Windows CE .NET-based voice over IP (VoIP) solution that enables the integration of voice communications into a variety of IP-based client devices and services such as desktop and mobile phones. The new enhancements to Windows CE .NET include a sample Telephony User Interface (TUI), a comprehensive VoIP Application Interface Layer (VAIL) and an advanced real time communications/Session Initiation Protocol network protocol. Microsoft also announced that leading global original device and equipment manufacturers (ODMs and OEMs) are developing VoIP devices using Windows CE .NET. For more information on this announcement, please visit http://www.microsoft.com/presspass/press/2003/apr03/04-02ComprehensiveVoIPPR.asp