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This chapter is from the book

This chapter is from the book

Element categories

We have explored the taxonomy of a VoiceXML document. The VoiceXML elements can also be categorized by function, as shown in Table 3-1, based on comments in the DTD. This partitioning can be summarized as follows:

Audio Input

Element types controlling how input is collected from the caller.

Audio Output

Element types controlling how audio is rendered to the caller.

Call Control

Element types that perform telephony hardware operations.

Dialog

Element types that define a dialog.

Event

Element types that produce or handle real-time events.

Field

Element types that define a form field.

Flow Control

Element types that control the execution flow of a VoiceXML application.

Miscellaneous

Element types that provide access to ECMAScript, native objects, and run-time logging.

Prompt

Element types controlling the prompting of the caller.

Root

Element types used to declare a VoiceXML document and provide document-level metadata.

Table 3-1. All of the VoiceXML element types organized by category

Element type

Category

Section

example

Audio Input

3.14, “example,”

grammar

Audio Input

3.20, “grammar,”

item

Audio Input

3.24, “item,”

one-of

Audio Input

3.35, “one-of,”

record

Audio Input

3.43, “record,”

rule

Audio Input

3.46, “rule,”

ruleref

Audio Input

3.47, “ruleref,”

token

Audio Input

3.55, “token,”

audio

Audio Output

3.2, “audio,”

break

Audio Output

3.4, “break,”

emphasis

Audio Output

3.11, “emphasis,”

mark

Audio Output

3.28, “mark,”

paragraph

Audio Output

3.37, “paragraph,”

phoneme

Audio Output

3.39, “phoneme,”

prosody

Audio Output

3.42, “prosody,”

say-as

Audio Output

3.48, “say-as,”

sentence

Audio Output

3.50, “sentence,”

voice

Audio Output

3.59, “voice,”

disconnect

Call Control

3.8, “disconnect,”

transfer

Call Control

3.56, “transfer,”

choice

Dialog

3.6 “choice”

form

Dialog

3.18, “form,”

menu

Dialog

3.29, “menu,”

catch

Event

3.5, “catch,”

error

Event

3.13, “error,”

help

Event

3.21, “help,”

link

Event

3.26, “link,”

noinput

Event

3.32, “noinput,”

nomatch

Event

3.33, “nomatch,”

throw

Event

3.54, “throw,”

assign

Field

3.1, “assign,”

block

Field

3.3, “block,”

clear

Field

3.7, “clear,”

field

Field

3.16, “field,”

initial

Field

3.23, “initial,”

option

Field

3.36, “option,”

value

Field

3.57, “value,”

var

Field

3.58, “var,”

else

Flow Control

3.9, “else,”

elseif

Flow Control

3.10, “elseif,”

exit

Flow Control

3.15, “exit,”

filled

Flow Control

3.17, “filled,”

goto

Flow Control

3.19, “goto,”

if

Flow Control

3.22, “if,”

param

Flow Control

3.38, “param,”

return

Flow Control

3.45, “return,”

subdialog

Flow Control

3.51, “subdialog,”

submit

Flow Control

3.52, “submit,”

log

Miscellaneous

3.27, “log,”

object

Miscellaneous

3.34, “object,”

property

Miscellaneous

3.41, “property,”

script

Miscellaneous

3.49, “script,”

enumerate

Prompt

3.12, “enumerate,”

prompt

Prompt

3.40, “prompt,”

reprompt

Prompt

3.44, “reprompt,”

meta

Root

3.30, “meta,”

vxml

Root

3.60, “vxml,”

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