<choice>

<choice
    dtmf="DTMF_sequence"
    accept="exact" | "approximate"
    next="URI"
    expr="ECMAScript_Expression"
    event="event"
    eventexpr="ECMAScript_Expression"
    fetchaudio="URI"
    fetchaudiodelay="time_interval"
    fetchaudiominimum="time_interval"
    fetchhint="safe"
    fetchtimeout="time_interval"
    maxage="integer"
    maxstale="integer"
    message="string"
    messageexpr="ECMAScript_Expression">
  child elements
</choice>

dtmf

A DTMF sequence to select this choice.  Optional.

accept

Overrides the setting for the accept attribute in <menu>. Optional. (Defaults to exact.)

• exact - The text contained in the <choice> element defines the exact phrase to be recognized.
• approximate - The text contained in the <choice> element defines an approximate recognition phrase.  A subset of the words in the phrase can be matched.  For example, "hello world" can be matched with "hello world", "hello", or "world".

next

The URI of the dialog (i.e. form or menu) or document to transition to when this choice is selected.  Exactly one of next, expr, event, or eventexpr must be specified.

expr

An ECMAScript expression to be evaluated and used as the URI of the dialog (i.e. form or menu) or document to transition to when this choice is selected.  Exactly one of next, expr, event, or eventexpr must be specified; next has precedence over this attribute.

event

The name of the event to be thrown when this choice is selected.  Exactly one of next, expr, event, or eventexpr must be specified; next and expr have precedence over this attribute.

eventexpr

An ECMAScript expression to be evaluated and used as the name of the event to be thrown when this choice is selected. Exactly one of next, expr, event, or eventexpr must be specified; next and expr have precedence over this attribute.

fetchaudio

The URI of audio to play while waiting for the document to be fetched.  Optional.

Overrides the value of the fetchaudio property.

fetchaudiodelay

The length of time to wait at the start of the fetch delay before playing fetchaudio. Optional.

Overrides the value of the fetchaudiodelay property.

A platform extension.

fetchaudiominimum

The minimum length of time to play fetchaudio, once started, even if the document arrives in the meantime.  Optional.

Overrides the value of the fetchaudiominimum property.

A platform extension.

fetchhint

Defines when the next document should be fetched. Optional.

• safe - only load the next document when needed

Overrides the value of the documentfetchhint property.

fetchtimeout

The length of time to wait for the next document to be fetched before throwing an error.badfetch event.  Optional.

Overrides the value of the fetchtimeout property.

maxage

Indicates that this document is willing to use a cached copy of the next document only while the age of the cached copy is less than or equal to the number of seconds specified by this attribute.  Optional.

Overrides the value of the documentmaxage property.

maxstale

Indicates that this document is willing to use a cached copy of the next document that has exceeded its expiration time by as much as the number of seconds specified by this attribute. Optional.

Overrides the value of the documentmaxstale property.

message

A message string providing additional context about the event being thrown.  The message will be available as a variable within the scope of the <catch> element.  Optional.  (Can only be used if event or eventexpr is specified; only one of message or messageexpr can be specified.)

messageexpr

An ECMAScript expression to be evaluated and used as a message string, as documented under message, above.  Optional.  (Can only be used if event or eventexpr is specified; only one of message or messageexpr can be specified.)

<?xml version="1.0"?>
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml">
  <menu>
    <prompt> What do you want to drink, coffee or tea? </prompt>
    <choice next="#getcoffee"> coffee </choice>
    <choice next="#gettea"> tea </choice>
  </menu>
  <form id="getcoffee">
    <block>
      Ok, here's your coffee.
    </block>
  </form>
  <form id="gettea">
    <block>
      Ok, here's your tea.
    </block>
  </form>
</vxml>