Voice
XML and its components
Voice
XML is a concept based on XML that allows the access of Web Applications
and content through phones. Speech based Telephone applications can be
developed using Voice XML.
The
Voice XML has the following Components:
• Document
Server
• Voice XML interpreter
• Implementation platform
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Document
server allows the voice requests to be received from the interpreter and
responds with Voice XML documents.
Voice XML
Interpreter interprets the Voice XML documents that it receives from the
document server.
Implementation
Platform generates responses with respect to the user requests.
Voice XML
depends greatly on the infrastructure of the Internet. Voice XML uses
audio browser for input and output. The voice browser runs on the voice
gateway, which is connected through Public Switched Telephone Network
(PSTN).
Components
of Voice XML:
• DIALOGS:
There are
two types of dialogs, Forms and Menus.
Forms collect
input from the user just as in HTML where data is collected in the forms.
Menus provide a list of options for the user to select from.
• SESSION:
A Session
begins once the user begins to interact with a voice XML document.
• APPLICATION:
It is a collection
of Voice XML Documents. All the documents in a particular application
share the same root document.
• GRAMMER:
It specifies
the set of allowable vocabulary to be selected from the menu for the user
to interact with the Voice XML document.
• EVENTS:
If there
are any semantics errors in the Voice XML document, the Voice XML interpreter
throws the Events.
• LINKS:
It specifies
a transition that is common to all dialog boxes. If the user input matches
the Grammar the link is transferred to the specified link’s destination.
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