HTML Extensions

You use standard HTML elements to create a Web telephony application. In addition, the WTE supports five additional items that are not currently part of the HTML standard:

• VOICEFILE attribute. For more information, see Speaking to the Caller.
• GRAMMAR attribute. For more information, see Using the GRAMMAR Attribute.
• onselectiontimeout event. For more information, see Handling Time-outs and Non-valid Keys.
• onselectionerror event. For more information, see Handling Time-outs and Non-valid Keys.
• cut-through CSS property. For more information, see Receiving a Selection from the Caller.

Microsoft is working with the World Wide Web Consortium (W3C) to add these extensions to the next version of HTML in order to support aural browsers such as the WTE. These extensions are described in subsequent sections of this documentation.